Astros' Kyle Smith: Day-to-day with sore back

Smith was struck on the right side of his back by a comebacker in Friday's game for Double-A Corpus Christi and is considered day-to-day, MLB.com's Brian McTaggart reports.

He has not allowed a run in three innings, despite surrendering four hits and a walk while striking out two. A fourth round pick in 2011, Smith has not gained much traction as a prospect, in part because he needed Tommy John surgery last offseason.