Fuld's 2-run single lifts Twins over White Sox 4-3
Danny Santana had two RBIs for the last-place Twins, who won for just the 11th time in their last 30 games.
Chicago led 2-1 in the seventh when Minnesota loaded the bases against Ronald Belisario (3-7) on walks to Josh Willingham and Eric Fryer around a single by Chris Parmelee.
Guerra relieved and retired Eduardo Escobar on a foulout, and Santana hit a tying sacrifice fly just deep enough to left-center field. Fuld followed with a line-drive single up the middle and was thrown out at second when he tried to advance.
Adrian Nieto homered in the eighth off Casey Fien, Nieto's first in 76 career big league at-bats. All-Star Glen Perkins retired Gordon Beckham on a bases-loaded flyout for his 25th save in 28 chances.
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