Hertha says on its website that the "long-term" investment from KKR includes the acquisition of a 9.7 percent stake in the club.
"We knew they were a good team," Hertha general manager Michael Preetz said. "They didn't get the results they deserved in the opening half of the season. They played with courage. Still, I found we created holes in their defense that we should have made more use of, particularly in the first half."