Panthers quarterback Sam Darnold is undergoing an MRI on his throwing shoulder on Monday after experiencing soreness following Carolina’s 24-6 loss to the New England Patriots on Sunday.

However, coach Matt Rhule said he will wait until Wednesday to get a better grasp on Darnold’s injury status before making a determination on who’ll start Sunday against the Arizona Cardinals. P.J. Walker is the team’s other option at quarterback.

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“We will wait to see where Sam is health-wise moving forward,” Rhule said.

Darnold suffered a right shoulder injury in Carolina’s Week 8 victory over the Atlanta Falcons.

Darnold has struggled in recent weeks, tossing 10 interceptions in his last six games, including three against the Patriots on Sunday, one of which J.C. Jackson recovered 88 yards for a game-changing score.

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“Right now we are focused on Sam and his health,” Rhule said. “I think Sam would be the first to tell you that wasn’t good enough from the quarterback position (on Sunday). We had guys open with some opportunities that we weren’t able to connect on. We had too many batted balls. And then three giveaways. When you look at our season when we have protected the football we have had a chance to win. … So the play at the position has to be better.”

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Matt Paradis, who suffered a ruptured ACL in his left knee in Sunday’s game, is out for the season, according to Rhule. This week, Pat Eflein will start at the centre for the first time.

According to Rhule, defensive end Brian Burns (ankle) and left tackle Cam Erving (calf) both had MRIs on Monday. When the squad returns to practise on Wednesday, the second-year coach said he wants to learn more about their situation.