Justin Masterson is an intriguing sleeper in 2010. Pitching part of the season in relief and part of the season as a starter, he struck out 8.28 and walked 4.18 per nine innings last year. Combined with a very good 53.6% groundball rate, those stats make Masterson a highly effective pitcher. Normally a little bit of regression could be expected now that Masterson will presumably be pitching the full season as a starter, but given his age (about to turn 25) there's every possibility that Masterson could actully improve this season. If he can improve his control at all, he's going to very solid...far better than his current position in most drafts would indicate.
Great site for Premier League starting lineups