Sources: Max Holloway is aggravated by injury and will not be able to fight in March vs.  Alexander Volkanovski

Former UFC champion Max Holloway will not be able to challenge Alexander Volkanovski for the featherweight title in March after aggravating an earlier injury on Thursday, sources told ESPN.

The setback came just days after Holloway, 30, agreed to a trilogy fight against Volkanovski that was scheduled to headline UFC 272 on March 5 in Las Vegas. Holloway informed the promotion of his retirement Thursday, sources said.

The UFC has not made an official announcement regarding changes to the event or Holloway’s injury. There is no official time frame for Holloway’s return.

A bantamweight unification fight between champion Aljamain Sterling and interim titleholder Petr Yan is also booked on the UFC 272 card.

Holloway (23-6) lost the featherweight championship to Volkanovski (23-1) via unanimous decision in December 2019. Volkanovski defended his title via split decision in an immediate rematch in July 2020.

Both are undefeated ever since. Volkanovski defended his title for the second time against Brian Ortega last year, while Holloway went 2-0 in non-title fights.