Rudolph will undergo an MRI on his groin Monday, Albert Breer of NFL.com reports. The MRI should help determine the severity of the groin strain for Rudolph, who exited Sunday's game with the injury in the fourth quarter. The ailment puts his status in question for the Vikings' Week 4 matchup against the Falcons, leaving Rhett Ellison on standby to start if Rudolph is unable to go.