Kipnis sparked Cleveland's 10-3 triumph over Detroit on Wednesday with five hits, four runs and three RBIs. He became the first Indians rookie to get five hits and four runs in a game since Jim Fridley in 1952.
Since assuming everyday second-base duties on July 31, Kipnis has batted .354 with six homers and 10 RBIs. His immediate impact hasn't surprised Acta, who appreciates the youngster's effort.
"A 'dirtbag' is one of those guys that runs through a wall to win every single day," Acta said. "He throws himself around, is always dirty, runs every ball out, just does whatever it takes to win. That's what we call a dirtbag in baseball. [He's] really not concerned about how he looks on the field, just getting it done."
Kipnis said that his relentless play has merited him the "dirtbag" distinction before.
"It's a good thing," Kipnis said. "I could be called worse things."