Enough with the running. Try sliding. (Matt Rourke/AP)

Robert Griffin III will undergo more tests on the shoulder injury he suffered in his first NFL start since 2014, which will probably offer some answers for at least his mother.

Griffin said he was fine after he was injured — wait for it — when he failed to slide and instead absorbed a big hit on the sideline Sunday. Just as he was updating reporters during the postgame press conference, his phone went off.

“It’s my mother,” Griffin said with a smile as he pulled the phone from his pants pocket and looked at the I.D. “She’s really worried about me.”

Maybe his mother can convince him to do what Washington Redskins coaches could not: learn how to slide. “She’s calling you to tell you to slide,” NBC’s Tony Dungy quipped.

Griffin will undergo an MRI exam on Monday, according to Cleveland.com‘s Mary Kay Cabot, and if he can’t start Sunday against the Baltimore Ravens, the Browns will go with Josh McCown.

“It’s a sprained shoulder, (we) just have to monitor it and see how it goes,” RGIII said. “I can move my left arm. I’m in pain, but it will be okay. Just have to monitor it.  We’ll see more tomorrow and see how my shoulder is feeling and just move on from there.”