Racing PositionsRed Sox hire Breslow as chief baseball officer6MSource: Red Sox tab Breslow to lead baseball ops6MDiamondbacks put starter Kelly (shoulder) on IL2hLeMahieu has setback, exits 1st rehab game early2hJorge CastilloCueto eyes 17th MLB season, signs with Rangers2hHendricks to IL; Cubs' focus is injury, then pitching4hJesse RogersRangers' Scherzer set to make rehab start Wed.4hRoberts working with Ohtani on plate discipline1hD-backs acquire INF Alcantara, claim LHP Jacques5hLHP Garcia 2nd Nats player to go on IL with flu6h