"It was a kind of a weird play," Twins manager Ron Gardenhire said. "They were stealing and he goes to make the tag and ends up breaking his arm. He's seeing Dr. [Thomas] Varecka tomorrow. They'll kind of decide which route they're going."
Plouffe immediately left the game and was replaced at third base by Eduardo Nunez. The D-backs scored after the double steal on a sacrifice fly to left field from David Peralta.
Plouffe, 28, was one of the club's best hitters this season. He walked twice and added a sacrifice fly in the second before sustaining the injury. He finishes the year hitting .258/.328/.423 with 14 homers, 40 doubles and 80 RBIs in 136 games. He became the first Twins third baseman in franchise history to record 40 doubles in a season.
"He had a heck of a year for us," Gardenhire said. "He did what you hope a guy who has been around here does. You want him to kinda settle down and play the game, and he did that for us all year."
Rhett Bollinger is a reporter for MLB.com. Read his blog, Bollinger Beat, and follow him on Twitter @RhettBollinger. This story was not subject to the approval of Major League Baseball or its clubs.