It turns out the grudge match is going to have to wait.

UFC officials today announced that UFC light heavyweight champion [autotag]Jon Jones[/autotag] (20-1 MMA, 14-1 UFC) suffered a “leg injury” in training and has been forced to withdraw from the highly anticipated UFC 178 headliner opposite undefeated contender [autotag]Daniel Cormier[/autotag] (15-0 MMA, 4-0 UFC). The bout has been rescheduled for UFC 182, which takes place Jan. 3 in Las Vegas.

Additional reports indicated Jones’ injury includes a torn meniscus in his knee, as well as a sprained ankle.

A flyweight title fight between current champ [autotag]Demetrious Johnson[/autotag] (20-2-1 MMA, 8-1-1 UFC) and [autotag]Chris Cariaso[/autotag] (17-5 MMA, 6-4 UFC), which was expected to serve as the co-feature of this month’s UFC 177 event, will now be the main event of UFC 178, which takes place on Sept. 27 at MGM Grand Garden Arena in Las Vegas.

While Jones and Cormier have long…