The Chicago Cubs placed closer Pedro Strop (hamstring) on the 10-day injured list on Wednesday with a left hamstring strain and activated pitcher Mike Montgomery (shoulder) from the injured list in a corresponding move. It's the same injury that Strop dealt with at the end of last year, so this is concerning, especially since he struggled in a blown save his last time out. With Brandon Morrow still sidelined, Strop should be stashed in most leagues. [...]