Chicago ? Zack Greinke wouldn’t give in. He kept going for the corners instead of going after the hitters, and by his own admission was “too fine.”

Or was he perfectly fine?

Greinke pitched three-hit ball into the seventh inning, and the Kansas City bullpen was perfect Wednesday night, giving the Royals a 2-0 victory over the Chicago White Sox.

Greinke (1-0) struck out seven and walked three, winning for the first time in seven career decisions at U.S. Cellular Field.

“I treated every batter like I didn’t want him to get a hit on me, maybe was a little too fine,” Greinke said. “I didn’t give in one pitch the whole game. If I threw a fastball, I wanted it to be right on the corner, knee high — or inside corner, waist to stomach high. I was trying to make the perfect pitch too much.”

Relievers Juan Cruz and Joakim Soria retired all nine batters to preserve the Royals’ first victory of the season. In Tuesday’s opener, Chicago rallied to win when Jim Thome hit a three-run homer in the eighth inning off reliever Kyle Farnsworth.

Mike Aviles doubled and scored in the third inning, then singled and scored in the fifth for the Royals. That was enough for Greinke, who simply outpitched Gavin Floyd (0-1).

Soria pitched the ninth for his first save.

“We can take a loss like yesterday and come back today and play good quality baseball and win the ballgame,” second baseman Mark Teahen said.