The San Francisco 49ers are monitoring the health of defensive ends Leonard Floyd and Yetur Gross-Matos for their season opener against the New York Jets after both experienced knee injuries.

Coach Kyle Shanahan provided updates, indicating Floyd is day-to-day while Gross-Matos is expected to miss practice this week but won't go on injured reserve.

The team is dealing with depth issues on defense, especially after losing Drake Jackson for the season.