Here's what it looks like when you've had enough of losing to LeBron James.
Indiana Pacers star Myles Turner -- just a few days after dropping yet another playoff series to LBJ and the Cavs -- decided to go from skinny fat to shredded ... and we gotta say, the results so far are impressive.
The 7-footer's been hitting the weights the last five weeks ... but he's also been moving his big-ass frame around in boxing sparring sessions.
FYI ... prior to Turner beefing up this summer -- he weighed in at 255 pounds.