It was the seventh win in nine games for the Twins, who erased a 5-2 deficit with LeCroy's one swing and won the rubber game of the three-game series.
Twins manager Ron Gardenhire had a depleted bench with former Blue Jay Shannon Stewart (right foot), Doug Mientkiewicz (lower back) and Luis Rivas (groin) nursing injuries. He had no choice but to use LeCroy to hit for light-hitting Alex Prieto, who was none for three with two strikeouts.
It was the first pinch-hit, grand slam for Minnesota in seven seasons.
Notable deaths of 2014 [PHOTOS]