Eiichi Koyano was removed from Thursday night's after he hurt his right knee.
With runners on first and second and two out in the 4th inning, Haruki Nishikawa hit a double to right-center. Kaneko was the runner at first and attempted to score on the hit. He hurt his right knee as he tried to cross home plate. He was taken off the field on a stretcher and taken to a hospital during the game. He was diagnosed with a injury to the medial collateral ligament in his right knee.
The knee will be immobilized for two to three weeks. It might take six to eight weeks for a full recovery.
Source: Daily Sports 5/1/2014