Scott Sizemore was all but given the Tigers second base duties when they decided to let Polanco walk. He is 25 years old, and has been a solid contributor with the bat at the AA and AAA level. Last year he hit .308, 17 Hr, 39 2b's and stole 21 bags. His bat is considered his best tool, and the fact that he is seen as an average defender at best won't concern your fantasy team .
He was tearing up the Arizona Fall League when a broken ankle injury forced him to have off season surgery. He looks like it won't affect his chances of making the team out of spring training as he started his first game yesterday and looked solid turning a double play.
What to expect? Sizemore looks like a much better fantasy option for 2010 than the prospect acquired in the Granderson trade, Austin Jackson. He looks like he could be a solid contributor with double digit homers and steals while not crushing your average. He really has a shot at the ROY award, and is a legitimate option as a middle infielder in a standard 12 team 5X5 league. He doesn't look like he has the upside to be a star, but as a 25 year old with a solid resume he should get the job and could prosper into more. If your league uses SLUG% he's an even more solid play as he's been a doubles machine in the past. I plan on adding him as 1$-2$ acquisition at my auction and letting him start the year as my middle infielder.