Racing PositionsRockies activate Chacin, put Rosario on DL10MRosario avoids major injury, still day to day9MSzymborski: Overvalued, undervalued hitters7MDan SzymborskiFantasy: 2013 Sleepers and Busts7MFantasy staffDodgers' Kemp collides with wall, injures knee9MGoldstein: 10 prospects/rookies on the rise7MKevin Goldstein