Daniel Cormier has pulled out of his April 23rd rematch with Jon Jones due to an apparent knee injury. There have been reports of people seeing Cormier limping around earlier in the week.
Cormier lost the first bout against Jones by decision in January of 2015 at UFC 182. Cormier then won the UFC Light Heavyweight title over Anthony Johnson by submission in his next fight after Jon Jones was stripped of the title following a felony hit and run incident that ended in a plea agreement. Rumors are that Anthony Johnson has been training and is willing replace Cormier but there is no guarantee that Jones will accept the fight. Anthony Johnson since losing the title fight against Cormier has dispatched both Jimi Manuwa and Ryan Bader by knock-out.
The title fight was already in doubt when Jon Jones was arrested last week for violating his probation after being cited in Albuquerque, New Mexico for drag racing. Though that was resolved when Jones agreed to anger managment and driver improvement courses along with 60 more hours of community service.
There is already a title fight on the card between Flyweight Champion Demetrious Johnson and Henry Cejudo.