Seibu Lions veteran left-hander Kazuhisa Ishii announced Tuesday that he will retire at the end of the season, lowering the curtain on a 21-year career with a combined 182 wins in Japan and the major leagues.

"I've been thinking that the time has come," said Ishii. "I still want to win and feel like I can still play, but I have become tired of the preparations required to do this," he said.