Repko, whom the Twins signed to a Minor League deal in April after the Dodgers released the 29-year-old outfielder, has batted .319 with nine runs scored, three home runs and six RBIs in 16 games since his June 25 callup from Triple-A Rochester.
"Our people really liked him," Gardenhire said. "Our scouts did a really good job about watching this guy, and when he became available, we got him. I think it's kind of a see-for-yourself type of thing when you bring in a player and don't know anything about him.
"He was in another league, so we didn't get to see him play. Now that we've gotten him out there and into some ballgames, he's handled himself very well. It's really exciting."
Repko's offensive ability and defensive versatility particularly excite Gardenhire.
"He's got a short, compact swing and can turn on the ball a little bit," Gardenhire said. "I don't think home runs are his forte, but he can hit them every once in a while. He's proven that he can put it in the seats, so good for him. He can spell any of the outfielders and feel really comfortable doing it. When you put him out there, he gives you a lift."