49ers tight end Vernon Davis isn't worried about his negotiations with the team regarding a contract extension. San Francisco gave linebacker Patrick Willis a hefty extension earlier this offseason. "I'm not in a rush to do anything," Davis said Monday after the first of four optional practices this week. "That'd be good, when I eventually sign my extension. It's not something that's heavy on my mind. I'm not really thinking about it at the moment. I like to let things come to me. He's a defensive guy, I'm an offensive guy. I didn't really try to compare him to me."