Peyton Manning
Manning is one of the most talented quarterbacks in NFL history and enjoyed a storied career. But he let himself down in 2016 after the Saints won Super Bowl LVI. It was a heartbreaking moment for Manning because he was desperate to win a second ring. But he attracted a lot of criticism because he didn’t shake hands with any New Orleans coach or player (via CBS Sports).

He walked past Sean Payton and Drew Brees as he stormed back to the locker room. Some people accused him of bad sportsmanship and compared him to Cam Newton. His opponents didn’t begrudge him because he has such a strong winning mentality. Many of the best athletes are also the worst-behaved losers because they can’t handle it.