While Brewers right-hander Wily Peralta is never one to look at the radar gun, the fireballer knows when he's thrown a fastball with extra zip.
"When it's coming out good, I can just feel it," said Peralta.
Entering the year as Milwaukee's top prospect, Peralta also has the National League's fifth-highest fastball velocity so far this season.
He'll look to keep up that pace on Saturday against the Dodgers at Chavez Ravine.
The ball was coming out well in his last start, when Peralta limited the Cubs to two runs on five hits in 6 2/3 innings for his first victory of the season.
"I was getting ahead," Peralta said after the start. "I could throw the fastball for a strike, or the slider, the changeup. This time, I was able to mix it up. When you can throw your off-speed for strikes, it makes it so much harder for the hitters. When they know it's fastball on the first pitch, they have a better chance."
Meanwhile, right-handed pitcher Matt Magill will make his Major League debut, pitching for Stephen Fife, who was placed on the 15-day disabled list with right shoulder bursitis, retroactive to April 22, on Saturday. Fife made one start after he was called up when Chad Billingsley underwent Tommy John surgery, hurling 4 2/3 innings and allowing four runs on seven hits against the O's last Sunday.
Magill posted a 2.84 ERA with 23 strikeouts over 19 innings in four starts for the Triple-A Albuquerque this season.
Now the 23-year-old will be on the hill for the Dodgers, ready to help them capitalize during its six-game homestand. Los Angeles started off the stretch well, beating the Brewers, 7-5, on Friday.
Brewers: Weeks playing through struggles
• Brewers manager Ron Roenicke said before Friday's game against the Dodgers that he might be more likely to sit slumping second baseman Rickie Weeks if the team weren't so short of other infield options.
"I think if Aramis [Ramirez] was here, I would probably think about it a little bit more," Roenicke said. "Because we would have guys that could fill in that I would feel really good about."
Ramirez, the regular third baseman, is on the disabled list with a sprained left knee, and first baseman Corey Hart is still recovering from right knee surgery.
Weeks, meanwhile, has been swinging though a prolonged slump. He has just five hits in his last 62 at-bats.
Dodgers: Ramirez to start rehab assignment
• Shortstop Hanley Ramirez is scheduled to begin a Minor League rehab assignment on Saturday with Class A Rancho Cucamonga.
Ramirez would like to return to the Dodgers by Tuesday since it is his Bobblehead Night at Dodger Stadium. However, Mattingly thinks that may be rushing things.
"Monday would be really optimistic," Mattingly said before Friday's game against the Brewers. "He hasn't played in a while."
Ramirez has yet to play this season following surgery on a torn right thumb ligament on March 22. He's been taking batting practice for over a week, and has been throwing for even longer.
• Mark Ellis left Friday's game after the fifth inning after straining his right quad running to first in the fifth. Ellis will have an MRI on Saturday and is not expected to play.
• The Dodgers have lost nine of their last 12 games against the Brewers.