The San Francisco 49ers are expected to place running back Jerick McKinnon on injured reserve to start the season, according to NFL Media's Ian Rapoport.

Rapoport reports that it's unclear at this point if he could return at some point this season but to fix the issue, he could need any procedure. McKinnon tore his ACL last season before even playing a down with the 49ers, but he was expected to be ready to start this season. McKinnon has had three setbacks so far this summer and that has led the team to place him on injured reserve.

49ers general manager John Lynch told KNBR that he did not look good on Tuesday in his return to practice, and the latest setback is dissapointing.

“It’s a real bummer because you keep getting to the final step and the final step is actually playing NFL football, and particularly at his position, where you have to make hard cuts, you have to put your foot in the ground, and we did it a month ago and he kind of regressed and I would say yesterday we had a similar situation.

“So we’re trying to get to what’s the root cause of the problem that he’s having. And just because he’s working through it, I’m going to leave it at that, but yesterday was not encouraging from that standpoint for Jet. What that means, we’re not sure yet, but we’re working hard to find that out.”

Hopefully, this isn't a season-ending injury for McKinnon, but at least if he can be ready by the time next season rolls around, there won't be any more setbacks.