"Injured wide receiver Michael Crabtree caught about 25 passes at the start of practice Monday from 49ers quarterbacks as well as coach Jim Harbaugh, who zipped him his final pass.

Crabtree, however, was not in uniform and has not been cleared to practice because he is still on the physically unable to perform list after breaking his left foot in early June.

Wearing shorts, a red sweat shirt, black cleats and a baseball cap, Crabtree spent about 10 minutes during the warmup period catching passes from Alex Smith.

When practice began, he headed to a middle field with the four quarterbacks and Harbaugh. Crabtree lined up wide of the group and took a few quick steps as a receiver would before catching screen passes from each of the quarterbacks. He caught passes from both sides of the formation but never ran more than five yards from the line of scrimmage.

After about five minutes, general manager Trent Baalke approached Harbaugh, presumably to tell the coach that Crabtree was not allowed to participate in practice. Crabtree then moved to the team's artificial-surface field, where he began his usual rehabilitation work."