Wyndham Clark

Wyndham Clark just won the U.S. Open ... but instead of talking birdies and bogeys, he's airing out a relationship saga involving Baker Mayfield ... and it sounds like his chick picked the football over golf. Wyndham stopped by Barstool Sports' "Pardon My Take" podcast this week and revealed what…

Wyndham Clark wasted no time celebrating his U.S. Open victory on Sunday ... TMZ Sports has learned he hit up an L.A. hot spot just hours after securing the big win -- and while he was there, he chugged booze right out of his new trophy!! The scene at Delilah was awesome ... the 29-year-old got up…