Dolphins quarterback Skylar Thompson was knocked out in the third quarter of Sunday’s 24-3 loss to the Seahawks with what head coach Mike McDaniel called a “pretty painful” rib injury.

Thompson appeared to be shaken up after a sack by Tyrel Dodson earlier in the third quarter, but ultimately left after being hit by Dre’Mont Jones while completing a pass on the ensuing series. McDaniel said in his press conference that Thompson lobbied to stay in the game, but the pain was ultimately too much.

McDaniel said the team will learn more about the injury on Monday and said it was a tough day for everyone as Thompson and Tim Boyle assumed the quarterback duties.

“It’s unfortunate, but that’s the nature of the National Football League,” McDaniel said. “I don’t make excuses, I don’t think anybody in the locker room does. It’s tough, but the National Football League is tough.”

McDaniel said he feels like he needs to better prepare the team’s quarterbacks now that Tua Tagovailoa is out for the next three games with a concussion. He said the offense is “an extension of me” and it’s up to him to make sure the unit is more productive against the Titans in Week 4.