Guys get excited in the moment and go all sorts of crazy. Who cares? It's a hyper-masculine sport. Fighters say all sorts of things after matches. Basketball players say outlandish things after hitting a big shot.
Guys like Sherman LOVE this too, they know exactly what they're doing. He's a great player, and he feeds off of the hype that builds around the game, situation, his competitor, or himself. Sometimes he has to fuel the fire, and he takes it to higher levels because he is comfortable operating in that kind of environment. It's win big or lose big.
He's that kind of guy, that's why he wants the ball thrown to him so he can make the big play. he knows that if he lets Crabtree make that catch, the media, and more importantly himself, are going to GRILL him. He won big on that play, and won big for his team, so of course he's going to be hype. He talked a big game, he backed it up, he's flying high. That's his fuel.
I understand guys like that. They set the bar for themselves in the public because they know the media, their coaches, their friends, their family, THEMSELVES, will hold them to it. Tim Tebow did it in a speech. Vince Young did it after his Rose Bowl win in 04. Countless fighters and racers do it. It's part of being a competitor.
People that aren't even in sports might do it. People in sales do it ALL THE TIME. That's besides the point.
Either way, I love the Seattle D and Sherman. Awesome player, and an amazing talent. As a Titans fan, I'd love to have him, trash talk and all.