For awhile it appeared as if the first of three Marlins Camp Days would be a summer snooze Wednesday for a young crowd that filled distant blocks of seats usually vacant in Marlins Park. After a sluggish start, a pair of home runs from unlikely power sources woke up the campers and lifted the Marlins to a two-game Interleague sweep of the Twins with a 5-3 comeback victory. Jeff Mathis and Placido Polanco lit up the home run sculpture with their first homers of the season as the Marlins dug out of a 3-0 hole created by Tom Koehler's erratic start. All the Marlins had to offer the youngsters the first four innings were two hits and some volleys from mascot Billy's T-shirt bazooka. Mathis finally launched something meaningful into the seats when he drove a 3-2 fastball from Scott Diamond to left with a runner on in the fifth to cut the deficit to 3-2. It was Mathis' first homer since Aug. 24 while with Toronto. It started a barrage of four consecutive hits that brought Giancarlo Stanton to the plate with the bases loaded. Stanton cued a dribbler to first, but it got the tying run home. Marcell Ozuna struck out to leave the other two runners stranded. Logan Morrison's leadoff single in the sixth chased Diamond, and Polanco greeter reliever Ryan Pressly by yanking another 3-2 fastball just over the fence and just inside the foul pole in left for what turned out to be the decisive runs. Polanco hadn't homered since June 4, 2012 for the Phillies.