SAN FRANCISCO — Final details of a one-day contract are being worked out that will allow legendary receiver Jerry Rice to retire as a 49er.

A team spokesman said the 49ers are working out the details with the NFL. The 49ers also are trying to find a date within the next two weeks when Rice and other principles such as owner John York would be available to make a formal announcement.

Rice had been scheduled to do his Sirius Satellite Radio program live from the 49ers' headquarters on Tuesday. But a 49ers spokesman said the live appearance now will take place on the day that the formal announcement is made.

Speculation as to the date for the actual ceremony has centered around the 49ers' home game on Nov.19 against the Seattle Seahawks.

Rice caught an NFL-record

1,549 passes during his NFL career. He retired last summer after spending time at the Denver Broncos' training camp.

Rice played 21 seasons in the NFL, the first 16 with the 49ers. He also played for the Raiders and the Seahawks.

HAPPY RETURN: Linebacker Jeff Ulbrich, who missed the last 11 games last year with a torn left bicep, recovered a fumble by Bears quarterback Rex Grossman in the first quarter and returned it 32 yards for a touchdown.

"It's just one of those things, being in the right place at the right time," Ulbrich said. "I got the ball, saw my spot, made it around the corner and took it in."

SLOW START: Asked about the play of first-round draft choices Vernon Davis and Manny Lawson, coach Mike Nolan said neither caught his eye. Nolan indicated he would need to watch film to evaluate their play.

Davis, a tight end, did not catch any passes. Lawson, a linebacker, also had a quiet night.

"Now I just learn and get better from it," Lawson said.

Davis and Eric Johnson regularly lined up in two tight-end sets in the first half.

"Me and Eric are athletic enough to get things done," Davis said. "Teams don't really have that in the league, two tight ends that can make plays. I think we have that here, in me and Eric."

ODDS AND ENDS: The 49ers used a three-man rotation on the right side of their offensive line, with Justin Smiley starting at guard, Kwame Harris at tackle and Adam Snyder filling in for both. ... Cornerback Mike Rumph, the 2002 first-round draft choice fighting to make the team, missed four tackles. ... Isaac Sopoaga and Anthony Adams split time at nose tackle with the starting defense. ... Backup quarterback Trent Dilfer did not play. Instead, Nolan took the opportunity to evaluate reserves Jesse Palmer and Shaun Hill, in that order. Palmer was 5 for 7 for 64 yards, and Hill was 4 for 4 for 46 yards. Hill also had an 11-yard touchdown run. ... Sixth-round draft choice Delanie Walker, a tight end from Central Missouri State, had a 38-yard kickoff return and punctuated it by leveling the Bears' Craig Bragg with a fierce stiff-arm. "He damn near killed the guy," Nolan said.

EXTRA POINTS: Nolan reported injuries to running back Kevan Barlow (bruised right thigh), linebacker T.J. Slaughter (concussion) and linebacker Renauld Williams (high ankle sprain). ... Niners offensive lineman Ben Sobieski (shoulder stinger), cornerback B.J. Tucker (ankle) and defensive lineman Jerry DeLoach (knee) did not play. Neither did center Jeremy Newberry, who has been plagued with pain in both knees and has not practiced since Aug.3.