Jun 28, 2009 6:15 PM EST

Royals pitcher Zack Greinke became the AL's fourth 10-game winner on Sunday.

Greinke struck out three and walked none in a 3-2 win over the Pirates. He lowered his major league-leading ERA to 1.95 with the start.

He was 8-1 with an 0.84 ERA in his first 10 starts, but went 0-2 with a 5.19 ERA in his next four.

Via ESPN