As noted, Rusev appeared to suffer a shoulder injury in last night's WWE Main Eventmatch against Neville at the tapings in Phoenix, Arizona.
Word from backstage is that Rusev is believed to have suffered a torn bicep, according toPWInsider. There is no confirmation on the severity of the injury but it was bad enough to stop the match.
Regarding the post-match tantrum that Rusev threw, that may have been done to make up some of the TV time they lost when the match had to be cut short.
We'll keep you updated on Rusev's status.
Source
Poor guy if this is true. He's had a horrible 2015.