Rob Gronkowski's played 130 football games in his legendary NFL career and Super Bowl Sunday might be his last ... so, is WWE Superstardom next for the 29 year old?
Gronk's BFF Mojo Rawley tells TMZ Sports he would absolutely love that ... and Rob would kill it in pro wrestling -- IF decides to sign with WWE.
"If he came to join me in the WWE would I be happy? Yes, I would be very happy. I'd be very ecstatic. That would be awesome."
Gronk's been in the squared circle before .