Royals right-hander Jeremy Guthrie has been on quite a roll so far this season.
Not only is the right-hander 5-0 with a 2.28 ERA in seven starts this year, but he's also unbeaten in 18 straight starts -- a streak that goes all the way back to Aug. 8, 2012.
During the two-year stretch, Guthrie is 10-0, making him the first Royals pitcher to win 10 straight decisions since Rich Gale in 1980, according to the Elias Sports Bureau. The Royals are 16-2 during that time.
He'll look to continue that streak on Tuesday against the Angels in Anaheim after the Royals got an 11-4 win on Monday.
Guthrie held the Orioles -- his former team -- to two runs on seven hits in six innings on Thursday, marking his second straight win and the fifth time this season he's tossed a quality start.
"He's got great stuff and can mix in four pitches," former teammate Matt Wieters said. "It was a little different seeing him from the box as opposed to behind the plate, but still the same guy."
Meanwhile, Jason Vargas will be on the hill for the Angels, in what has been an up-and-down season for the left-hander.
Vargas only allowed two runs over 17 innings in the two starts before he allowed five runs on 10 hits in 5 2/3 innings for the no-decision against the Astros.
Vargas went 0-3 in April before getting his first win of year on May 3 against the Orioles.
Angels shortstop Erick Aybar is expected to be back in the lineup on Tuesday after missing four straight games with a hamstring injury.
"He felt great," Angels manager Mike Scioscia said of Aybar's pregame workout on Monday. "He'll most likely play tomorrow."
Royals: Butler seems to break out of slump
• Billy Butler came into the Royals series against the Angels in a bit of a slump.
Entering Monday in a 4-for-35 slump, he went 5-for-5 in Monday's contest with five RBIs.
"We're trying to slow him down, getting to being the Billy Butler he was in the past," Royals hitting coach Jack Maloof said before Monday's game. "Which, obviously, is using the gaps for line-drive doubles, not trying to do too much at the plate, not trying to hit the ball too far."
Angels: Bourjos' hamstring improving
• Center fielder Peter Bourjos is feeling better after getting treatment in Arizona on his strained left hamstring during the Angels six-game road trip to Houston and Chicago.
"It was good," Bourjos said of his stint in Arizona. "Just did some rehab there and started to feel a little better."
No longer hobbling around the Angels' clubhouse, Bourjos was able to play catch on Tuesday, the only baseball related activity he's been able to do thus far.
The center fielder strained his hamstring two weeks ago and believes he is on schedule to return in another two to four weeks -- matching the initial four-to-six week timetable.
• Angels right-hander Jered Weaver played catch prior to Monday's game and is expected to throw his third bullpen session on Tuesday if he feels good enough.
Quinn Roberts is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.