LOS ANGELES -- White Sox starting pitcher John Danks said he'll see a doctor on Monday after experiencing soreness in his left shoulder. He played catch Friday before the team's series opener against the Dodgers rather than throwing a bullpen session as previously planned.

Rather than starting Danks on Monday against the Cubs, the White Sox have listed Jake Peavy as the scheduled starter.

Danks said he spoke to team doctor Gregory Nicholson, whom he'll see Monday in Chicago. Danks said he is unsure when he'll next throw a side session. He last pitched on Tuesday in a rehab outing with Triple-A Charlotte. He allowed three runs (one earned) and threw 61 pitches in four innings.

"We're doing everything we know to do to make me feel better," Danks said. "I haven't quite gotten over the hump yet. Keep doing what we're doing and play it by ear."

Danks said he didn't throw for very long on Friday because he was so sore Thursday. He has been on the disabled list since May 25, retroactive to May 20, for a left shoulder strain.

"My strength is there," Danks said. "I just got to get to that point where it doesn't hurt or bother me to throw. We haven't quite got all the way there yet. There's some real good days, and there are days like [Thursday]. I'm just kind of at the mercy of what my shoulder tells me."

The White Sox are being cautious with their Opening Day starter, who is 3-4 with a 5.70 ERA.

"It's one of those things you extend it and make sure he's healthy first," manager Robin Ventura said. "We just don't want to rush it. We're going to continue to be patient and make sure he's healthy."

Humber appreciates Cain's masterpiece

LOS ANGELES -- White Sox starting pitcher Philip Humber no longer owns baseball's most recent perfect game.

That honor belongs to the Giants' Matt Cain, who threw the 22nd perfect game on Wednesday in a 10-0 victory over the Astros in San Francisco.

"It's crazy, the amount of near no-hitters and no-hitters and perfect games that have happened the last few years," Humber said. "Who knows? Maybe it'll be a long time before the next one, but it's fun to see that. He pitched a great game. Obviously, very dominant the stuff I saw. He was really locked in."

Humber caught highlights of the game and marveled at the brief period of time between his perfect game -- which he threw on April 21 against the Mariners -- and Cain's perfect game. There had been two perfect games in a season twice before -- in 2010 and 1880. The perfect games in 1880 were separated by five days. Roy Halladay and Dallas Braden threw perfect games 20 days apart in 2010.

Cain's perfect game arrived 7 1/2 weeks after Humber's.

"Just to think there have only been 22 of them, to have two of them happen so close together, it seems like the chances of that are pretty slim," Humber said. "That's why baseball is a great game. You never know, on any given night, something special can happen."

Humber has never met Cain.

"It was just really neat to see," Humber said. "Just following his career, he seems like a really quality guy, obviously a pretty talented pitcher. Hats off to him."

Humber is former teammates with Giants center fielder Gregor Blanco, who made a leaping catch to save Cain's perfect game.

"That was outstanding," Humber said. "I played with him with Kansas City. It was really neat to see him do that."

Ventura enjoying trip back to Dodger Stadium

LOS ANGELES -- Friday marked the return of White Sox manager Robin Ventura to Dodger Stadium. He played 151 games with the Dodgers in 2003 and 2004 during the final seasons of his Major League career.

"I don't even know what I hit," Ventura said. "I know we won the West. It was great -- '04 was just a great year. Growing up a Dodgers fan and coming to games here as a kid, to be able to play here was special."

As far as a milestone, Ventura mentioned Steve Finley's winning grand slam against the Giants that clinched the National League West Division championship for the Dodgers in 2004.

"I don't know if it gets any better than that, second-to-last day of the season against the Giants. That was the best one," Ventura said.

Third to first

• Outfielder Kosuke Fukudome will possibly begin a rehab assignment on Monday, White Sox manager Robin Ventura said. Fukudome has been on the disabled list since June 7, retroactive to June 4, for a strained right oblique.

• The White Sox could see third baseman Brent Morel on Friday night or Saturday. He was scheduled to see a doctor in Los Angeles this week after visiting a spine specialist on Monday in Chicago. He has been on the disabled list retroactive to May 18 for a lumbar back strain.

• Former White Sox third-base coach Jeff Cox visited the team on Friday.