A lot of people noticed that Edge didn’t appear to be injured during the Greatest Wrestling Match Ever at Backlash. There’s a reason for that. Edge wasn’t hurt during the taping of the match. He hurt himself during a retake.
It’s unknown which spot is the one that injured him at this time, but there’s speculation from a few sources that it was during an RKO. The match had been redone with many, many takes to make sure it lived up to the hype. The reason he didn’t appear to be injured at the end of Backlash is because he wasn’t at that time.
Rumors came out that Edge had torn his triceps a few days ago, but no one knew any details. As reported last night, a torn triceps can take around 8 months to recover.