The San Francisco 49ers will have their mandatory minicamp from Tuesday-Thursday. Here's some things to watch for:Will Davis and Boone show? Both tight end Vernon Davis and guard Alex Boone have stayed away from the voluntary portion of the offseason. That's over. Starting Tuesday, everything the 49ers do as a team is mandatory and each player can be fined if they aren't present. Davis said he expects to be at the minicamp. Boone has not said a word publicly about his plans.