Posted by Sabrina B. @gametimegirl

When Randy Moss works out for the San Francisco 49ers on Monday, he’ll be catching passes from his possible future coach – Jim Harbaugh.

49ers CEO Jed York tweeted early Monday morning that Harbaugh, who played quarterback in the NFL for 13 seasons, will be throwing the passes to Moss at the workout.

“Former Colt Pro Bowl QB throwing for #49ers tomorrow. Just to clarify, Coach Harbaugh is turning into Capt Comeback to throw to Randy Moss,” York wrote.

Harbaugh is throwing to Moss because a current 49ers quarterback can’t throw in a workout for the team until the league year begins on Tuesday, March 13 at 4 p.m. ET.

“I talked to Jim tonight,” York told SI.com on Sunday night. “He’s excited, and a little nervous. He’s a competitive guy. He doesn’t want to look bad.”

Moss is attempting to make an NFL comeback after a year out of pro football.

The 35-year-old Moss, who worked out last Tuesday with the New Orleans Saints, played for New England, Minnesota and Tennessee in a rocky 2010 season. He could help fill a big void after 49ers receivers managed just one catch for 3 yards in a 20-17 loss in the NFC Championship Game to the eventual Super Bowl champion New York Giants at Candlestick Park on Jan. 22.

Moss’ workout with the Saints was said to be impressive, according to reports. The Saints didn’t publicize details of the session.

San Francisco cut ties with Braylon Edwards in December and already was without Joshua Morgan, who broke a bone in his lower leg Oct. 9 against Tampa Bay, had surgery to have screws inserted and was placed on season-ending injured reserve. Morgan is expected to generate his share of interest in free agency.

Michael Crabtree, San Francisco’s 10th overall pick in the 2009 draft, had 72 receptions for 874 yards and four touchdowns.

Moss’ best season came for the Patriots in 2007, when he caught 98 passes for 1,493 yards and a single-season-record 23 touchdowns in helping New England to a 16-0 regular-season record.

Moss has 954 catches for 14,858 yards and 153 TDs in his 13-year career, which included a stint in the Bay Area with the Oakland Raiders in 2005 and ’06.

Moss has had more than 1,000 yards receiving in a season 10 times, second only to Hall of Famer Jerry Rice, who did that 14 times.

–ESPN