The Dallas Cowboys suffered a pair of key injuries on defense during their 20-15 win over the New York Giants on Thursday night.

First, All-Pro edge rusher Micah Parsons injured his left ankle late in the fourth quarter. He was forced to leave the game and after undergoing an MRI on Friday, he was diagnosed with a high ankle sprain.

Parsons, who leads the Cowboys with 20 pressures, said afterward that he had iced the ankle and would try to be on the field when they faced the Pittsburgh Steelers in Week 5.

According to NFL Network’s Tom Pelissero, it’s possible that Parsons will miss more than the Steelers game, but the team has not announced a timeline.

The other notable injury happened to four-time Pro Bowl defensive end DeMarcus Lawrence, who hurt his foot in the third quarter. Pelissero reports that the Cowboys’ leader in sacks (3) will miss “several weeks” of action.

The Cowboys have two games left before their Week 7 bye.

Cowboys owner Jerry Jones said Friday on 105.3 The Fan that he does not believe either injury is serious.

“I’m glad they’re feeling good. Both have a good feeling about it. That’s usually a good sign,” Jones said. “I don’t know when I’ve seen a serious injury that the doctors didn’t say was a serious injury before the X-ray.”