John Cena underwent an MRI on his knee this morning. Cena posted an update on his Twitter, but was vague on details, writing, “MRI was typical good news bad news scenario. I’ve dealt with knees issues for the past few yrs, ill add one more to that list…..”

Cena added that he would still be appearing at tonight’s SmackDown tapings in Grand Rapids, MI.

“I know the risks of what can happen to me and I’m willing to play the odds,” Cena wrote. “#nevergiveup c u 2nite grand rapids”

We are looking for correspondents for tonight’s tapings in Grand Rapids, so if you are attending it, please contact us by clicking here.