BLOOD, SWEAT, & GAINZ
Here's reason #1,000,001 why The Rock is tougher than you ...
Dwayne Johnson suffered a pretty gnarly gym injury Monday requiring stitches to close a wound on his face.
But instead of cryin' about it -- he tasted his own blood and went right back to work!!!
The former WWE superstar said he suffered the wound throwing around some heavy weights -- and in a video, he revealed his eye was swollen and bloody.
But, in true tough guy fashion ... The Rock licked the blood off his face and said, "That's good.