The 2005 Big Ten Offensive Player of the Year was the 49ers' fourth round draft pick in 2006.
Welcome to SportsNation! On Tuesday, Seattle Seahawks fullback Michael Robinson stops by to chat about the NFL offseason.
Robinson, @RealMikeRob, just finished his third year with Seattle, and seventh in the league. He made the 2012 Pro Bowl in his second year with Seattle, after being the lead blocker for Marshawn Lynch, who ranked seventh in rushing yards.
Send your questions now and join Robinson Tuesday at 1:45 a.m. ET!