GLENDALE, Ariz. -- Manager Ron Washington wants to see progression from his starting pitchers their second time around in spring training.

Pitcher Colby Lewis got the group off to a perfect start Saturday in a 3-2 loss to the Chicago White Sox. In his second Cactus League start, Lewis was scheduled to pitch three innings.

He was pitching so well, Lewis went back on the mound in the fourth. And he still had zeros on his stat line when his day was over.

“I left it up to me which one I would like to do, and I chose to go back into the game,” Lewis said.

The adrenaline was pumping for Lewis, who struck out five batters in four innings. Granted, it was a split-squad day for the White Sox, but he was still dealing against many of the team’s regulars.

Leadoff second baseman Brent Lillibridge struck out to start the game. Lewis also struck out the side in the second inning on the White Sox’s No. 4, 5 and 6 hitters -- first baseman Paul Konerko, designated hitter Adam Dunn and catcher A.J. Pierzynski.

When Lewis decided to pitch the fourth, he picked another strikeout off centerfielder Kosuke Fukudome for the second out. Lewis got right fielder Alex Rios to ground out to second, completing his perfect day of work.

“You want to go out there and get outs, and that’s the main focus when you step between the lines,” Lewis said. “If you are still working on something, you still want to get that guy out, regardless.”

Lewis was pleased with his command on all of his pitches. He was able to locate his fastball inside and outside on hitters. He is also pleased with the way his changeup is coming along.

“Same grip, just trying to throw it more,” Lewis said about his changeup. “I think just to get that in the mix and keep guys off the rotational stuff with the slider and curveball, I think it’ll help my fastball a lot.”

Other observations:

Gentry exits: Outfielder Craig Gentry left the game in the fifth inning due to tightness in his left hamstring.

“He was out there grabbing his hamstring, so we just got him off the field precautionary,” manager Ron Washington said. “When he got in, he said he was fine.”

Kyle Hudson replaced Gentry in right field with one out in the bottom of the inning.

Gentry went 0-for-3 at the plate before his injury. Hudson was 0-for-2.

Feldman delivers: The perfect game was broken up on the first batter pitcher Scott Feldman faced, but it was one of just two hits he allowed. Feldman pitched three scoreless innings in relief for Lewis and struck out three.

Profar plays: Highly touted shortstop Jurickson Profar played 3 ½ innings Saturday. The seventh-best prospect on Baseball America’s Top 100 entered as a defensive substitution in the sixth inning for Alberto Gonzalez. Profar drew a walk in his first at-bat but was caught stealing second base. His final plate appearance resulted in a ground out.

Profar had a chance to keep the game tied with two outs in the ninth inning. It was a tough play, but Profar somehow came up with the ball in his glove, but his off-balance throw wasn’t on target.

“It’s a great experience,” Profar said. “It’s good for me. I’m learning.”

Moreland 0-for-4: Washington moved first baseman Mitch Moreland into the cleanup spot with the regulars out of the lineup. He went 0-for-4 with a strikeout at the plate.

De Los Santos struggles: Pitcher Miguel De Los Santos dealt with command issues on the mound again. Up 2-0 in the ninth inning, De Los Santos blew the lead. He gave up a run on two hits and a walk before recording his first out.

De Los Santos was up 0-2 on third baseman Dallas McPherson with the bases loaded and two outs. He threw a wild pitch, which brought home the tying run. De Los Santos eventually walked McPherson and was pulled by Washington for Justin Miller, who gave up the game-winning run.