Brett Keisel leaves with left foot injury, questionable to return

One of Pittsburgh’s defensive stalwarts continues to be hampered by injury. Steelers defensive end Brett Keisel (left foot) is questionable to re-enter Thursday’s game at Baltimore, the club announced. According to the NBC telecast, Keisel’s left foot is the injured foot that kept him of the lineup the last two games. Keisel, 35, is in…