The month of May has been good to Jason Vargas.
While the left-hander went 0-3 in five April starts, he is 3-0 in four starts this month. While notching quality starts in four of his last five outings, Vargas has lowered his ERA from 6.75 to 3.55.
He'll look to keep up that pace on Friday night when the Angels take on the Royals at Kauffman Stadium and go for their sixth straight win.
On Sunday against the White Sox, Vargas allowed just four hits in seven innings for the win. He also struck out six and walked three.
"He's really doing what he's done his whole career," manager Mike Scioscia said. "Changing speeds, getting in the zone. He's a pitcher, he has a great feel of when to come in and when to take a little off. That's Jason's talent, and it's shown up for us. He's been our most consistent pitcher. ... Ever since he's gotten comfortable in the season, he's been lights out."
Meanwhile, Luis Mendoza will be on the hill for the Royals. The right-hander has hit his stride as of late, going six innings in his last three outings.
Mendoza (1-2, 5.50 ERA) just faced the Angels, getting his first win of the season on May 13 against them by allowing just three runs on six hits in six innings of work.
"He's got good action, good sink and for the first part of the game, he was making some good pitches with it," said Scioscia.
He kept those numbers going on Sunday, allowing just three runs on eight hits in six innings for a no-decision against the A's.
Staying under control in all three starts, he's combined to walk just three and strike out 12.
Angels: Weaver eyeing start next week
Scioscia said on Thursday that depending on how Jered Weaver's next side session goes, the right-hander could rejoin the rotation next week.
Weaver worked 5 2/3 innings in an extended spring training game on Wednesday, and 62 of his 75 pitches went for strikes. Weaver hasn't pitched for the Angels since fracturing his left elbow on April 7.
"It's very encouraging," Scioscia said. "We'll let him throw his bullpen and see where he comes out of it. If everything comes out fine, we'll fold him into the rotation the middle of next week. If he needs more work, it'll be there for him."
Royals: Herrera optioned; Coleman recalled
Kansas City reliever Kelvin Herrera was optioned to Triple-A Omaha on Thursday, while right-hander Louis Coleman was recalled to take his bullpen spot.
Herrera had a 2-4 record, two saves and a 4.87 ERA in 19 games. The right-hander also allowed eight eight home runs in 20 1/3 innings.
Coleman went 2-1 with three saves and a 1.03 ERA in 14 games for Omaha.
Tossing one inning in Thursday's game against the Angels, Coleman allowed just one walk.
• Scioscia said on Thursday that reliever Kevin Jepsen is close to returning to the Angels bullpen. On the disabled list for more than five weeks because of a right shoulder strain, Jepsen will make another rehab appearance this week.
• Mendoza has not allowed a walk over his last 13 innings.
Quinn Roberts is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.