They were going on and on about how unusual it was that the backup played the first game of a back-to-back. Now we know why it happened. I thought Sparks had his best start of the season. Maybe Columbus didn't test him enough with actual sustained pressure last night but the rebound control concern didn't really play any part in the game.
P.S. A groin injury isn't a nice rest. It's an injury. An annoying one for a goalie. A skill player can maybe float through a week or two mid-season games nursing a tweaked groin avoiding hard turns and acceleration, a goalie doesn't get that luxury. And hopefully this injury isn't serious.