Sam Darnold and Drew Lock: An old married couple or quarterbacks for the Seattle Seahawks? Lock would say both.Darnold, who will miss Sunday's game against the Arizona Cardinals because of a quad injury, also suffered a cracked rib on the second play of Monday night’s 34-17 loss to the Chicago Bears. Lock said he knew right away Darnold was hurt despite the starter not saying anything."Are you married?" Lock asked a reporter who had asked him how he knew Darnold was hurt.CLICK HERE FOR MORE OUTKICK SPORTS COVERAGE"I’m not, no," the reporter responded."Did you have a girlfriend for a really long time?" Lock asked, and the reporter said he did at one point."You know when she’s upset, she doesn’t have to say anything to you? I spent a lot of time with Sam, practice, watching every rep, games, watching very single rep. I just – I could tell," Lock said.While Darnold’s rib injury occured on the second play of the game, the quad injury he suffered came on the final drive of the Seahawks’ loss on Monday. Seahawks coach Mike Macdonald praised his quarterback’s toughness.THE CRAIG CARTON SHOW–UNFILTERED, UNAPOLOGETIC AND UNMISSABLE. DOWNLOAD HIS DAILY PODCAST NOW!"So he’s playing the whole game without even making a thing of it and playing his tail off and competing," Macdonald said. "I think it’s worth noting how tough this guy is. He’ll be back sooner than later, I’m sure."Macdonald said Darnold likely could continue playing through the rib injury, but the quad injury is keeping him out of the lineup. The 29-year-old is considered week-to-week and will not be placed on injured reserve.For Lock, this will be his second start of the season. Darnold’s first injury occurred early in the Week 1 game, and Lock ended up playing most of the game, leading Seattle to a win over the New England Patriots.In his lone start against the Cardinals in Week 2, Lock was fantastic. He completed 19 of 26 passes for 235 yards and three touchdowns.This season, he has completed 35 of 48 passes for 422 yards with four touchdowns and no interceptions.Lock has been dealing with a sore elbow over the last two weeks but will start Sunday. Jalen Milroe will serve as the team’s backup quarterback.The 4-4 Seahawks will look to beat the 3-5 Cardinals for the second time this season at 4:25 p.m. ET Sunday, climb above .500 and keep pace in the NFC West.The Associated Press contributed to this report.