Michael Crabtree (calf) says there's nothing "holding him back" from playing in Friday's preseason opener, but admits whether he plays is up to the coaching staff. Crabtree got in his first full practice on Tuesday, but almost certainly won't play against the Vikings. That would make him 0-for-13 on suiting up for preseason games in his career. God willing, he'll make his exhibition debut on August 18 in Houston.