1. The Diarra judgment: context, issue framing, holding

BZ’s contract with Lokomotiv Moscow was terminated in 2014, and the club sought compensation before FIFA’s Dispute Resolution Chamber under Article 17 RSTP. While that dispute remained pending, Charleroi offered BZ employment on two cumulative conditions: that he could be registered and eligible to play, and that the club would not be exposed to joint and several liability for the compensation claim.Footnote ¹⁰ Neither FIFA nor the Belgian football association provided the assurances needed, and the move collapsed. The dispute then unfolded before the Dispute Resolution Chamber, the Court of Arbitration for Sport and the Belgian courts, ultimately producing the Mons reference to the European Court of Justice.Footnote ¹¹

The harm was concrete and immediate. Registration was not secured before the period closed, leaving BZ excluded from work.Footnote ¹² Those conditions turned legal uncertainty into a priced barrier to entry: a rational club could not treat BZ as registrable unless it could quantify exposure and obtain clearance before the period closed.Footnote ¹³

The legal issue is whether the coupled operation of compensation exposure and joint liability, ITC gatekeeping, and registration periods predictably deters cross-border employment.Footnote ¹⁴ That framing makes clause-by-clause review incomplete. Any one provision may appear defensible in isolation, yet the bundle can still exclude in practice once deadlines, presumptions, and clearance pathways interact. The relevant question is whether the system offers a credible, time-bounded route to registration ex ante, rather than whether it can be litigated later.

The Court held that Articles 45 and 101 TFEU must be interpreted as precluding rules with the features described in Diarra. Footnote ¹⁵ The referring court remains responsible for applying that interpretation to the dispute and determining remedies on the record. Together, these clarifications yield an evidential template. Once deterrence plausibly follows from the coupled design, FIFA must point to safeguards that operate within the registration period and to material that can be tested quickly from outside.Footnote ¹⁶

Three connected moves give that template its shape. The judgment first shifts scrutiny from individual provisions to an interlocking design that conditions access to work.Footnote ¹⁷ That matters because clause-level compliance can be asserted while the burden reappears elsewhere in the bundle, and exposure and clearance may still be impossible to resolve within the registration period.Footnote ¹⁸ Once scrutiny is set at the level of the bundle, the question becomes practical: does the design offer a predictable route to registration, or does it convert uncertainty into deterrence by combining risks a club cannot carry before the period closes?Footnote ¹⁹ If deterrence is produced by the coupled operation of the bundle, safeguards must be verifiable within the registration period.Footnote ²⁰

The Court then ties legality to a process standard, drawing by analogy with the European Superleague case. It requires criteria capable of constraining discretion, reason-giving that can be contested, and review that remains reachable when it still matters.Footnote ²¹ In transfer disputes, the relevant timing point is the registration period. Review that arrives after the period closes will often come too late to preserve registrability, so the standard is met only if reasons are usable in real time and a route to challenge can still affect the outcome before access to the market expires.Footnote ²²

Finally, Articles 45 and 101 TFEU have distinct conditions and consequences and must be addressed in turn.Footnote ²³ Under Article 45 the bundle is treated as structurally deterrent in operation, because the combined effect can place cross-border employment at a disadvantage within the period that matters.Footnote ²⁴ Under Article 101 the same design features intensify the pull towards a restriction-by-object analysis, with justification becoming more evidence-intensive.Footnote ²⁵ Article 45 offers no equivalent to an Article 101(3) efficiency gateway, intensifying the evidential burden once restriction is in play.Footnote ²⁶ Justification therefore turns on what can be shown on the record within the registration period, including how exposure is calculated and why clearance is delayed.Footnote ²⁷ The same evidential deficit then matters under both frameworks. Under Article 45, the absence of verifiable safeguards supports a finding of disproportionate restriction; under Article 101, it deprives FIFA, as the relevant association of undertakings, of the material needed to show that its rules are indispensable and proportionate within Article 101(3). Where the administrative record is thin, both Treaty provisions point toward unlawfulness. What links them is procedure: legality depends on a file that can be verified from the outside.Footnote ²⁸

What emerges is a workable template: criteria must channel discretion, decisions need contestable reasons, and review must remain capable of changing the outcome before the registration period expires. The auditable file is where the Article 45 and Article 101 analyses meet.

2. The July 2025 RSTP amendments: operational stress test

The July 2025 amendments respond to Diarra by recasting how exposure is calculated, how it is attributed, and how clearance is timed.Footnote ²⁹ The operational test is whether the reforms produce decisions that can be contested within the registration period.Footnote ³⁰

FIFA’s Explanatory Notes frame Diarra as centred on Article 17 compensation exposure and Annexe 3 ITC procedure, and emphasise the urgency created by upcoming registration periods.Footnote ³¹

On compensation, the amendments attempt to convert indeterminate exposure into a more quantifiable evidential structure by adopting a positive-interest, expectation-based measure and making mitigation operational where a subsequent contract exists.Footnote ³² Positive interest reduces deterrence only if the decision discloses its inputs in a retrievable record. At minimum, the decision should disclose the residual term, the mitigation figure reflected in the new salary, and any uplift applied to reach the final amount. Bare labels are insufficient, though a short decision can still be compliant if it states residual value, identifies mitigation, and justifies any uplift by reference to the named factors. What matters is replicability from the face of the record.Footnote ³³

The amendments also reconfigure how liability exposure must be established. Under the pre-2025 framework criticised in Diarra, joint and several liability attached automatically once inducement was presumed, without separate proof of the new club’s role. Under the revised framework, a new club’s liability is contingent on established inducement. If the proof standard is predictable and documentable within the registration period, structural deterrence narrows. If the inferential chain becomes visible only after the event, uncertainty may persist in functional terms despite the textual change.Footnote ³⁴

On inducement, the revised approach recasts the question as an individualised one of proof rather than a presumption that a new club must rebut.Footnote ³⁵ That matters because Diarra criticises deterrence driven by attribution through inferences that remain difficult to test within the period that matters. Under the pre-2025 framework the presumption operated automatically once breach was established, subject only to exceptional circumstances within FIFA’s sole discretion. A prospective club had limited ability to know in advance what evidence would be treated as sufficient, or how quickly a dispute would produce a usable decision. The shift to individualised proof addresses that opacity. However, it leaves open the evidentiary baseline in practice: if the materials needed to discharge the burden are not accessible at the point of signing, deterrence may persist even as the formal presumption falls away. Disputes will therefore turn on whether FIFA’s decision-making record discloses a contestable factual basis for inducement findings at a point when challenge can still be brought usefully.

On ITC procedure, Article 9(1) retains the general statement that an ITC is issued ‘without any conditions or time limit’, while decisive constraints are placed in Annexe 3.Footnote ³⁶ The former association must deliver the ITC within 72 hours of the request.Footnote ³⁷ If it fails to do so, the new association may proceed to register the player in the absence of a timely response, unless one of the Annexe 3 validation exceptions applies.Footnote ³⁸ The validation-exception grounds define when that pathway cannot be treated as mechanically available.Footnote ³⁹

The design aims to convert clearance from a discretionary veto into a time-bounded administrative step. A practical tension remains around the registration period’s end-date. Annexe 3 allows transfers to be completed during the registration period if the ITC request is lodged by the last day of that period.Footnote ⁴⁰ The rule is meant to ensure that clubs and associations start the ITC process early enough for the 72-hour clock to work.

Late-period bargaining remains common, however. The amended text treats a last-day request as sufficient to keep the transfer within the period, even though the 72-hour response window will frequently run beyond the domestic cut-off. The practical question is whether associations will treat a timely request as preserving the player’s registrability, or whether domestic systems will treat the period end-date as an absolute deadline regardless of the pending ITC process.

The principal evasion risk is more likely to take the form of practices that recreate delay than of open textual loopholes. Delay may be reproduced through incomplete file practices, informal queries, or sequencing arguments that postpone effective registration until after the period closes. The Article 11(6) fallback reduces deterrence when it operates in real time, rather than functioning as a placeholder pending later resolution. The 72-hour mechanism constrains discretion to the extent that it is supported by a visible record.

What matters in practice is whether the record can be tested. Refusal grounds must be mapped to enumerated categories. Time-stamps must show when requests were lodged and when responses were issued. Any reliance on validation or exception mechanisms must be traceable to specific factual triggers, not absorbed into opaque administrative processes. Without those elements, the amended clock risks becoming paper compliance while market access continues to depend on timing that outsiders cannot verify.Footnote ⁴¹

FIFA’s own reporting describes the framework as ‘robust, transparent, effective and proportionate’ and states that the goal of post-Diarra ‘clarity and stability’ has been ‘overwhelmingly achieved’.Footnote ⁴² Those claims are testable against the standard Diarra supplies. The judgment makes the evidential demand concrete: safeguards must be capable of external verification on the record, and the coupled design must not recreate deterrence through opaque discretion or non-auditable timing.Footnote ⁴³

A likely objection deserves a direct answer. FIFA may argue that rigid timelines compromise thorough investigation, that provisional mechanisms invite strategic behaviour, and that cross-border clearance within 72 hours is administratively unrealistic. The structure of the judgment suggests a narrower demand. Timing constraints arise where registration periods create hard market-access boundaries, and validation exceptions preserve room for objective refusal grounded in documented facts. The Court does not draft transfer regulations; it requires safeguards that are auditable and reasons capable of external verification before exclusion becomes irreversible. Judicial review therefore operates as a constraint on opacity and delay.Footnote ⁴⁴

Conclusion: two testable predictions

In conclusion, this case comment suggests that there are two testable predictions. First, disputes are likely to cluster around ITC delay within registration periods. The trigger will often be late-period requests where the 72-hour clock overlaps with weekend handling or cross-border administrative handoffs. Litigation will press associations to keep and disclose time-stamps for request, reminder, and response, and to justify any departure from the timetable by reference to enumerated grounds. The key stress point is whether registration in the absence of a timely response, subject to the validation exception mechanism, functions as effective registration in practice or as a placeholder pending later resolution.Footnote ⁴⁵ If the latter becomes routine, clubs will predictably seek urgent interim relief designed to preserve registrability within the still-open registration period.

Secondly, challenges will concentrate on reason-giving and record availability in compensation and inducement assessments that shape willingness to sign. If compensation decisions fail to disclose a calculation trail, exposure remains hard to price within the registration period.Footnote ⁴⁶ If inducement findings rest on factual assumptions that remain opaque to the new club at the point of contracting, deterrence re-enters through uncertainty despite the move to individualised proof.Footnote ⁴⁷ Over time, that pressure is likely to crystallise into disputes about what the file must contain to make external review possible before the period closes, including access to time-stamped ITC logs, the evidential basis for any uplift, and the factual foundation for inducement findings. The practical question is whether the burden shift operates as a real-time constraint or as a retrospective audit. That difference will determine whether Diarra reshapes FIFA’s regulatory practice or merely documents its deficiencies.