The San Francisco 49ers are holding their breath after starting running back Jerrick McKinnon suffered an injury in practice on Saturday.
McKinnon reportedly went down on the last play of a team workout while making a cut, without contact:
#49ers RB Jerick McKinnon made a cut on the last play of practice, nobody around him and went down. Shanahan says team is concerned about it. "Something with a knee, we'll find out later. We're nervous about it, that's for sure."
— Nick Wagoner (@nwagoner) September 1, 2018
Per NFL Network reporters Ian Rapoport and Mike Garafolo, it “appeared to be a concerning injury.”
Niners head coach Kyle Shanahan all but confirmed the concerning nature of the injury, telling reporters after practice: “We’re nervous about it, that’s for sure.”
The extent of the injury, though, is not yet known.
This story will be updated shortly.