He is due to face his former teammate TJ Dillashaw
UFC bantamweight champion Cody Garbrandt is struggling with a back injury ahead of his first title defence against TJ Dillashaw.
The pair are currently coaching opposite one another on "The Ultimate Fighter" reality series and have already had a number of altercations on the show.
The pair used to be teammates at Urijah Faber's Team Alpha Male gym in Sacramento before Dillashaw left to join the Elevation Fight Team in Denver, Colorado.
The split led to a bitter feud which is still simmering in the build-up to their title clash.
However, it looks as if the fight might have to be postponed with Garbrandt admitting he is struggling with a back injury ahead of their July 8th clash.
The bout is still scheduled to go ahead with "No Love" heading to Germany for treatment at the moment.
The UFC also held a press conference to launch their summer schedule on Friday with the light-heavyweight title fight between Daniel Cormier and Jon Jones arranged for UFC 214 in Anaheim in July.
They were originally due to fight as the main event of UFC 200 only for Jones to be pulled from the card for an anti-doping violation and suspended for a year.
The bad blood between pair remains with the two having to be separated by security before the event.