What happened: Nico Iamaleava returned to the field to start the fourth quarter against Purdue. The Bruins subsequently scored a touchdown to extend their advantage to 45-31.

Why it matters: The quarterback had exited late in the third quarter after remaining on the turf and holding his right throwing shoulder. His return provides immediate stability for the Bruins offense.

What to watch: The coaching staff will monitor his throwing shoulder for any lingering discomfort as they close out the game.