Updated with report of small collarbone fracture, 9 :02 a.m.

A season that has been unusually hard on the health of NFL quarterbacks claimed another star Monday night when Aaron Rodgers was knocked out of the Green Bay Packers’ game against the Chicago Bears with a shoulder injury.

Jay Cutler and Aaron Rodgers, maybe talking injuries? (Morry Gash / AP) Jay Cutler and Aaron Rodgers, maybe talking injuries? (Morry Gash / AP)

If there was any good news for Cheesehead Nation,  it was that the injury was to Rodgers’ non-throwing shoulder. This morning ESPN’s Adam Schefter reported that Rodgers had a small fracture in his collarbone and is expected to be out about three weeks. ESPN’s Ed Werder had a more dire prognosis, reporting that a source said the injury “doesn’t look good.”

A return in three weeks would bring Rogers back in time for the Packers’ Thanksgiving Day game against the Detroit Lions.

Details on just how seriously Rodgers was injured was sketchy late Monday. “We’re getting some tests [Tuesday],” he said in a text message to Jason Wilde of ESPN Milwaukee. Wilde, who co-hosts Rodgers’ weekly Tuesday radio show, had inquired whether the QB had broken his collarbone.

Rodgers landed on his left shoulder on the opening series of the “Monday Night Football” game when he was sacked by Shea McClellin. He was examined by Dr. Pat McKenzie, the team’s physician, on the bench and then headed into the locker room. Midway through the third quarter, Rodgers returned to the sideline in street clothes and watched as his replacement, Seneca Wallace, and the Packers lost 27-20.

Packers Coach Mike McCarthy wasn’t giving specifics about the injury after the game. “Just had a chance to speak with Aaron; he has a shoulder injury,” McCarthy said. “They want to run more tests. They don’t have an exact diagnosis.”

Wallace, the only other quarterback on the active roster, completed 11-of-19 passes for 114 yards and threw one interception.