Joe Mauer underwent yet another knee surgery on his left knee even though this one is considered minor. That's his second surgery on that knee by my count and to go along with back and pelvis problems in 2007(?), you have to wonder how long this guy can hold up behind the plate. So I pose the question to you, Over or Under five more years of catching for Mauer. He will be 32 then. I say under because I think the Twins have to keep him healthy enough to stay in the lineup and earn that paycheck.