Twins manager Ron Gardenhire suggested Wednesday that Joe Mauer might have to be moved off catcher. Mauer was placed on the 7-day concussion disabled list Tuesday after taking several foul tips off his catcher's mask on Monday. "That could happen," Gardenhire said of a permanent move to first base. "If this becomes one of those situations where this affects him for any length of time, yeah, it could happen. It's going to have a lot to do with how Joe thinks about it."