The 49ers notified the NFL on Monday that wide receiver Michael Crabtree caught a couple dozen passes during warm-ups while still on the physically unable to perform list. San Francisco team spokesman Bob Lange said the 49ers immediately reported the "oversight" to the league office after it happened Monday afternoon. It's unclear if the team will be penalized. Crabtree, the 10th overall pick in 2009 NFL Draft out of Texas Tech, has missed his third consecutive preseason, this time while nursing a left foot injury.