The long-running rugby brain injury class action edged a step closer to its day in court this week, with the senior English judge managing the case telling more than 1,100 former players and their lawyers that the time for procedural skirmishing is over. The defendants — World Rugby, the Rugby Football Union, the Welsh Rugby Union and the Rugby Football League — now face an October case management hearing that will identify the 28 lead claimants whose cases will frame the litigation.
Senior Master Jeremy Cook, the King's Bench Division specialist running the procedural side of the litigation, delivered a pointed message in court on 19 May 2026. The criticism cut both ways, but the sense of urgency was unmistakable.
"It won't have escaped anybody's notice that some of these claims are now over five years old, and we haven't made much progress," Cook told the parties.
The case, brought on behalf of former professional and amateur rugby union and rugby league players who allege the sport's governing bodies failed to protect them from repeated head impacts, has been mired in disclosure disputes since the original filing. Claimants allege the impacts caused early-onset dementia, Parkinson's disease, motor neurone disease, epilepsy and chronic traumatic encephalopathy.
Cook's framing is that the litigation will only function if both sides drop the adversarial reflexes that normally drive a high-stakes civil action. The case, he said, requires "utmost cooperation between the parties" rather than typical adversarial tactics, an unusual instruction in a damages claim of this scale.
For Matthew Phillips KC, leading the claimants' team, the next confrontation is already on the calendar. He told the court the parties are "probably headed for an almighty battle in August" over whether the players' side has complied with disclosure orders requiring full medical records and supporting documentation. Failure to comply could see individual claims dismissed.
The disclosure burden is the through-line of every hearing. Cook made clear that claimants face the possibility of their cases being thrown out if their legal team cannot demonstrate they have met the orders issued by his predecessor Justice Dexter Dias in 2024 and 2025. Compliance, the judge noted, requires "at least two years and millions of pounds" of work.
The directional question Cook wants resolved is the substantive heart of the case.
"We need to know what it is you allege should have been done by what point in time," he said.
That sentence does much of the legal heavy lifting. It asks the claimants to specify, year by year and rule change by rule change, what World Rugby and the home unions should have done differently. Without it, the case can't move from disclosure into expert evidence.
In a separate ruling handed down on 23 December 2025, Justice Dias dismissed an appeal brought by more than 1,100 claimants challenging the disclosure orders, telling the court that "an erroneous inclusion of a claimant or claimants in the lead cohorts may affect many other claims wrongly, unhelpfully or unfairly." That ruling effectively locked in the 28-lead-claimant approach that Cook's October hearing will now operationalise.
Susan Rodway KC, also acting for the claimants, has previously described the disclosure requirements as "impossible, onerous and costly," citing the advanced age and declining health of many claimants as a compounding factor. World Rugby and the home unions, for their part, have argued that the disclosure exercise is fundamental to identifying which alleged injuries can credibly be linked to playing rugby and which cannot.
For former players such as Steve Thompson, the 2003 England World Cup-winning hooker who has spoken publicly about his early-onset dementia diagnosis, the procedural grind is the most visible cost of bringing a case of this complexity. Many of the claimants are in their fifties and sixties. Some have already died since the original claim was lodged.
The October hearing will set the lead cohort. The August disclosure battle Phillips KC warned of will determine how many of the original 1,100 are still inside it.
