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8/21/2014 1:23 A.M. ET

Yost rewards Colon with start at third

DENVER -- While it wasn't exactly glamorous, Christian Colon came through with a big-time play Tuesday when he was asked to pitch-hit in the eighth. And on Wednesday, manager Ned Yost rewarded him with a start at third and a chance to prove himself in the leadoff role.

After three straight Royals reached to load the bases with two outs in the seventh, Colon took three straight 95 mph fastballs from left-hander Rex Brothers to walk in a run.

By also keeping the inning alive, Colon set up Omar Infante's two-run double in the next at-bat. That gave the Royals a 7-2 lead, which might have seemed excessive until the Rockies got two back in the ninth off left-hander Francisley Bueno.

One day after the Royals' 22nd win in their last 27 games, Yost said he hasn't been around many rookies with the poise and professionalism of Colon.

"He's just solid, solid winning-type baseball player that is prepared for any task you may have available for him that day," Yost said.

Colon, the Royals' fourth overall Draft selection back in 2010, has hit .385 (10-for-26) with four doubles and six runs in his first taste of Big League action this season.

With left-hander Jorge De La Rosa on the mound, his start isn't exactly surprising until you consider how adamant Yost has been about Mike Moustakas being his everyday third baseman this season.

In 104 games, Moustakas has posted career-lows in average (.202) and on-base percentage (.262).

Likewise, if Colon proves himself in the leadoff position, it could lead to more opportunities. Despite owning the third highest team average in the Majors at .265, the Royals have produced the fifth lowest on-base plus slugging percentage in the American League from the one-hole (.696).

Perez scratched with sore right knee, to have MRI

DENVER -- Royals catcher Salvador Perez will go for an MRI on his sore right knee Thursday after he was a late scratch for Wednesday's series finale against the Rockies.

According to manager Ned Yost, Perez "felt great" during stretching before his knee began tightening up right at the start of batting practice.

Perez felt the tightness in his right patella tendon region, the same area he felt a pinch in while rounding second base in the fifth inning of Monday's 6-4 win over the Twins. He ended up catching two more innings of that game before being removed for Erik Kratz in the seventh. But Perez was back and starting Tuesday against the Rockies and finished the 7-4 victory 1-for-5 with a double and one RBI.

After the Royals' 5-2 loss Wednesday, Yost emphasized the decision to rest Perez as just a case of playing it safe.

"With an off-day tomorrow, we wanted to take all the precautions and give him two days," Yost said.

The Royals originally ruled that there was no structural damage in Perez's knee after the injury first occurred Monday. The Royals still feel they have a good handle on his soreness, but Perez is going for an MRI "just to rule out anything," Yost said.

Perez has appeared in the second-most games of any catcher in the Majors behind the Brewers' Jonathan Lucroy. Through 115 games, the Royals All-Star is batting .268 with 15 home runs and 54 RBIs.

Two days after he became only the third American League player in the last four seasons to hit two homers in a game he didn't start, Kratz replaced Perez in the lineup again. He finished 0-for-2 but plated one of the Royals' two runs on a sacrifice fly in the fourth.

Royals offering special ticketing discount today

DENVER -- For one day only, the Royals are offering their fans an opportunity to watch the hottest team in baseball at a discounted price.

On Thursday, Aug. 21, fans will be able to purchase single-game tickets online at www.royals.com or by phone for the Royals remaining home games with all additional fees being waived.

The Royals have two remaining homestands and each are of the 10-game variety. In their first beginning on Monday, Aug. 25, the Royals are scheduled for a makeup game against the Yankees along with three three-game sets against the Twins, Indians and Rangers.

After six games on the road, the Royals return to Kauffman Stadium on Thursday, Sept. 11. In their final regular home games of the year, the Royals will face off against the Red Sox (four games), the White Sox (three games) before hosting the Tigers for a three-game series that could very well determine who wins the American League Central.

The no fee sale will begin at 12:01 a.m. and run until 11:59 p.m. on Thursday. To order single-game tickets, fans can visit www.royals.com or call (816) 504-4040.

Cody Ulm is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.