Twins manager Ron Gardenhire said Monday that third baseman Trevor Plouffe has been limited early on in camp due to a sore right calf. Gardenhire added he has held Plouffe out of workouts merely as a precaution. Plouffe is projected to be the starting third baseman for Minnesota this season. "He'll be fine," Gardenhire told MLB.com. "We all know about the throwing part and all those things. I know Plouffe worked his butt off out there trying to get better. That's half the battle. You've got a guy willing to go out and do extra work -- tried a lot of different things. The advantage he has now is he's the third baseman. It's not like he's got to take ground balls in left field."