NFL player William Gay just learned a very important life lesson ... sometimes when you win, you completely freakin' lose in a major way ... especially when the game is credit card roulette.
Gay and his Pittsburgh Steelers teammates went out to dinner recently and the whole group of very large -- and probably very hungry -- athletes decided to settle the bill by playing credit card roulette.
If you don't know what that is ... it's when everyone who ate puts their card in a hat ... and the one that gets drawn has to foot the entire bill.
That was the story for William ... and James Harrison made sure to document the entire thing on video.
Tough break ... where's a rookie when you need one?