CHARLOTTE — Running back Christian McCaffrey was back in full force during Carolina’s loss at Kansas City, racking up 151 yards from scrimmage and a pair of touchdowns.

But there is at least mild reason for concern heading into Monday, as McCaffrey came out during the Panthers’ final offensive drive. He was shown on the television broadcast on the sideline with trainers working on his upper body.

“I don’t know anything about him injury-wise,” head coach Matt Rhule said postgame. “I thought Christian did a nice job, made plays for us as he always does.”

After missing the past six weeks with a high ankle sprain, McCaffrey took 18 carries for 69 yards and a touchdown. He also caught all 10 of his targets for 82 yards with a receiving touchdown.

“He’s a great player, and great players show up in