As reported on this site yesterday, Rey Mysterio seemed to suffer a leg injury working a house show over the weekend.
The latest update on the situation is that Rey tweaked his knee in a failed 619 attempt, during which he slipped off the ropes and fell to the ground. The word we’re getting is that he’s feeling much better today and isn’t expected to miss any ring time at all.
Mysterio has a history of getting injured shortly before WrestleMania, with last year’s Mayweather storyline leading the way.