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 in pressures with 20, said afterward he iced the ankle and that he was going to try to be on the field when they face the Pittsburgh Steelers in Week 5.

According to NFL Network’s Tom Pelissero, it’s possible that Parsons misses more than the Steelers game, but no timeline has been announced by the team.

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 “multiple weeks” of action.

The Cowboys have two games to play before their Week 7 bye.

Cowboys owner Jerry Jones said Friday on 105.3 The Fan that he doesn’t believe either injury is serious.

“I’m pleased that they feel good. Both feel good 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 that’s a serious injury before the X-ray.”