Niners defensive back Richard Sherman said after the game that the Browns quarterback refused to shake hands during the coin toss before the game."What's amazing, and annoying, was him not shaking hands at the beginning," Sherman said, according to NFL.com. "That's some college s---. It's ridiculous. We're all trying to get psyched up, but shaking hands with your opponent -- that's NFL etiquette. And when you pull bush league stuff, that's disrespectful to the game. And believe me, that's gonna get us fired up."
https://www.espn.com/nfl/story/_/id/...handshake-snub