The Chargers may get one of their best players back for Sunday’s game against the Colts.

Los Angeles has officially listed edge rusher Khalil Mack (elbow) as questionable for the contest. He was designated to return from injured reserve earlier this week and was a limited participant for all three days of practice.

“It’s unbelievable. It’s like the Wolverine ,” head coach Jim Harbaugh said Friday, via Alex Insdorf of BoltBeat.com. “We’ll see, we got 24 hours still to make some of those determinations. What kind of impact it would make? It would be good.”

Mack recorded a sack and two QB hits this season before suffering his elbow injury. The Chargers need to activate Mack to the 53-man roster for him to play.

However, it looks like the Chargers will not get back Joe Alt this week, a

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