Chicago Cubs shortstop Starlin Castro has a high left ankle sprain and is likely to miss the rest of the regular season, according to general manager Jed Hoyer. "Right now the prognosis is four weeks to come back," Hoyer said Wednesday afternoon. "We're not going to shut him down. His mentality is he can beat four weeks and come back." Read more http://espn.go.com/chicago/mlb/stor...ected-miss-remainder-season-high-ankle-sprain