John Cena provided the following update on the injury he suffered on last night's WWE Raw. He tweeted the following today:

"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.....

I know the risks of what can happen to me and I'm willing to play the odds. #nevergiveup c u 2nite grand rapids"

Cena is expexted to be at tonight's SmackDown tapings from Grand Rapids.