Notre Dame could get a key defensive lineman back for Week 5 vs. Louisville. Junior defensive end Joshua Burnham (ankle), listed as questionable on Monday’s injury report, will be available for Saturday’s game. Whether Burnham participates remains to be seen, but he will dress and be ready to go. The edge rusher from Traverse City, Mich. injured his ankle on the last defensive play of Notre Dame’s Week 2 loss to Northern Illinois. He was listed as questionable for Week 3 at Purdue and Week 4 vs. Miami (Ohio), but he missed both games. Burnham played 53 snaps (to Oben’s 11) in the loss to NIU, …