(AP Photo/Mike Roemer)

With Aaron Rodgers out with a a broken right collarbone, backup Brett Hundley started Sunday for the Packers. He's the first starter for the Packers not named Rodgers since Dec. 22, 2013.
Packers quarterback Aaron Rodgers gets up Oct. 15, 2017, after being hit by Minnesota Vikings linebacker Anthony Barr. The two-time NFL MVP had surgery to repair his broken collarbone. (AP Photo/Jim Mone)
On Dec. 22, 2013, Rodgers missed a 38-31 loss at home to the Pittsburgh Steelers with an injury to his left collarbone.
Who was his replacement? 

None other than Matt Flynn.

Quarterback Matt Flynn looks up after a 38-31 loss to Pittsburgh on Dec. 22, 2013, in Green Bay, Wis. (AP Photo/Mike Roemer)