Matt Barrows of the Sacramento Bee reported Thursday that San Francisco 49ers rookie linebacker Reuben Foster was diagnosed with a mild AC joint sprain in his shoulder.
Barrows added that the injury is to the same shoulder Foster was nursing leading up to the NFL draft, and that he will be limited in practice Thursday.
The 49ers selected Foster with the No. 31 overall pick in the 2017 NFL draft, although many expected him to be taken within the first 10 picks.
One of the issues was his injury history, most notably a shoulder issue that reportedly didn't improve with surgery.