Astros' Valbuena has setback, could be out for season (Yahoo Sports)

Astros third baseman Luis Valbuena could be lost for the season after experiencing a setback in his quest to return from a right leg injury. Valbuena has been on the disabled list retroactive to July 27 with a strained right hamstring. Valbuena is batting .258 with 11 homers and 31 RBIs in 86 games.