The Minnesota Twins have been getting a significant percentage of their offense from unexpected sources this season.

Eduardo Nunez leads the team with a .335 batting average through 195 plate appearances, while an outfielder who began the season in the minors is on a tear since joining the lineup on May 20.

Robbie Grossman currently leads the Twins in OPS -- shorthand for on-base percentage plus slugging percentage -- at 1.069, joining Nunez, Joe Mauer and Miguel Sano atop the charts thanks to a .453 on-base percentage and a .615 slugging percentage.

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Grossman's OPS ranks fourth in the American League since May 20, when he went 3-for-4 with a three RBI, a double and a home run.

Highest OPS since May 20, American League (min. 50 PA)

Player Team OPS
David Ortiz
Boston
1.451
Mookie Betts Boston 1.178
Logan Morrison Tampa Bay 1.163
Robbie Grossman Minnesota 1.069
Miguel Cabrera Detroit 1.067

Since then Grossman has a hit in all but six games, as well as 17 hits, 12 walks, 10 runs, six doubles and three home runs.

The Twins (16-40) are having a tough time racking up wins this season, but they're developing a reputation for battling until the final out.

Minnesota ranks seventh in the majors with 14 come-from-behind wins, meaning that 87.5 percent of their wins this season have involved a comeback.

The 1923 Boston Red Sox remain MLB's comeback kings after 65.6 percent of their wins were via comeback.

Statistics courtesy of STATS, inc.