SANTA CLARA, Calif. -- Michael Crabtree caught 85 passes for 1,105 yards and nine touchdowns with the San Francisco 49ers last season. Before that, his three-year career totals lined up with those for a player the 49ers signed amid injury concerns Friday.2009-11 Crabtree vs. CollieAustin Collie, who missed the 2012 season following knee surgery and has a history of concussions, joins the roster along with Lavelle Hawkins. Those two prevailed over a third receiver, Laurent Robinson, during a tryout at team headquarters, according to Matt Barrows of the Sacramento Bee.