Jim Harbaugh said he expected a bigger practice workload this week for his two newcomer receivers, Austin Collie and Lavelle Hawkins. Both were signed on Aug. 2 and have been worked into the ends of practices and the end of Thursday's preseason game. Neither has received any extensive work with starting quarterback Colin Kaepernick to this point.
"I think they will this week, yes," Harbaugh said of increased work. "Pleased with what they're doing, definitely. They're studying hard, working hard to get out there and chomping at the bit to be out there."
Getting every receiver quality snaps will be difficult. The 49ers have 11 wideouts on the active roster right now. One of them, rookie Quinton Patton, remains in a blue, non-contact jersey due to a broken finger. But Patton seems poised to rejoin practice in full soon. He's been instructed not to catch passes with the injured hand but made several -- including on a deep pattern -- in Saturday's FanFest session by catching them with his good, right hand.
Meanwhile, former first-round pick A.J. Jenkins has been getting more snaps than any other receiver, both in practices and in the preseason game. He was in on 39 plays Thursday against the Broncos, 11 more than the second-most active wideout, Chad Hall, and 31 more than starter Marlon Moore.
Finally, Harbaugh said that Collie still has been advised not to go full bore in practice. He is coming off a torn patella tendon that cost him the 2012 season. Collie has looked smooth in recent practices and has reported no problems. But the 49ers remain wary of him going at top speed.
"I think coming of of serious leg injuries, you've got to be conscious of not bursting and not hitting that top gear just yet," Harbaugh said. "So it's a progression."
-- Matt Barrows