• Almost two weeks after suffering a concussion, outfielder Justin Maxwell was set to return to Houston Sunday to be re-evaluated by doctors. He could begin a rehab assignment as early as Monday if he is cleared to return to play. Maxwell has been on the seven-day disabled list since June 29.
• Astros prospect Preston Tucker leads all of Minor League Baseball with 79 RBIs this season after hitting his 16th homer of 2013 last night for Double-A Corpus Christi. It was his first at that level. Tucker, an outfielder, has played 75 games for Class-A Lancaster and nine for Corpus Christi, where he is hitting .188.
• A day after being named to the American League All-Star team and hitting the go-ahead, three-run homer, catcher Jason Castro got the day off Sunday.
Dave Sessions is a contributor to MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.