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5/18/2014 1:05 A.M. ET

Davis fine to pitch; Chen not ready for rehab

KANSAS CITY -- Reliever Wade Davis' stiff neck was improved on Saturday and he was ready to pitch if the Royals called on him.

"He was still bothered a little bit [Friday], but we didn't need him," manager Ned Yost said.

Davis was needed in relief of Danny Duffy on Saturday night and retired all three batters he faced in the eighth inning of the 1-0 win over the Orioles.

Left-hander Bruce Chen, out since April 25 with an ailing back, is still not ready to go on a Minor League rehabilitation assignment.

"This is the first time he's thrown off the mound, so he's not," Yost said. "He's going to go on the road with us and continue to throw his side sessions, and see how he feels."

Reliever Francisley Bueno is still on a rehab assignment with Triple-A Omaha. He's pitched seven innings in four games and given up three earned runs. A finger injury put him out on April 7.

Yost confident Butler will turn corner at plate

KANSAS CITY -- Billy Butler's battle to hit like the Billy Butler of the past continues.

Going into Saturday night's game against the Orioles, Butler was 1-for-14 on this homestand and his average was .226 with one home run and 14 RBIs.

But manager Ned Yost was confident Butler will come around.

"It's not what I'm seeing from him, it's what I've seen from him in the past," Yost said. "He's a lifetime .300 hitter. He's going through a struggle for the first time.

"He got out of whack and he doesn't know why. He could always feel his swing. [Now], he's feeling things he never felt before and it's harder for him to make an adjustment right now."

Yost said that hitting coach Pedro Grifol has made an adjustment on Butler's swing which seems to have helped in Friday night's 4-0 loss.

"I saw the ball good, I felt like I put good swings on the ball and felt like I made progress," Butler said.

Maybe so. Butler had the game-winning hit in Saturday night's 1-0 victory and also hit a long drive that was caught in deep center field.

Salvy gets break before finale against O's

KANSAS CITY -- Salvador Perez will be back behind the plate for the Royals on Sunday after getting a break from the starting lineup on Saturday against the Orioles.

"I wanted to give Sal a day off and it's generally a day game after a short turnaround, but with [James] Shields going [Sunday], I wanted to pair him up with Sal," manager Ned Yost said. "So, we chose to give him the day today."

With Perez out, Yost dropped Eric Hosmer into the third spot in the order and elevated Alcides Escobar to the No. 2 hole.

"That kind of creates a hole in the middle of the lineup," Yost said. "Esky's been swinging the bat real well so we decided we'd give it a try and see if we could get something going."

'Dressed to Nines' to salute Negro Leagues

KANSAS CITY -- Wearing replicas of Negro Leagues uniforms, the Royals and the Orioles won't be the only folks dressed for the occasion on Sunday.

The Royals, in their first "Dressed to the Nines" event, are encouraging fans to wear their Sunday best to the game in the tradition of the Negro Leagues crowds of the past. The first 10,000 fans will receive a Kansas City Monarchs fedora to top off their finery.

The Royals will wear Monarchs cream and navy blue uniforms from the mid-1920s and the Orioles will wear late-20s Baltimore Black Sox jerseys. All of the game-worn and autographed uniforms from both teams will be auctioned off after the game at royals.com/NLBM or mlb.com/auction.

It's a busy weekend for the Negro Leagues Baseball Museum in Kansas City.

Former Royals Willie Wilson and Al Fitzmorris helped lead a three-man panel at the NLBM's Legends Luncheon on Friday.

Wilson, Fitzmorris and Orioles manager Buck Showalter told old baseball stories and discussed the state of the game in preparation for NLBM's Saturday opening of their Negro Leagues Beisbol exhibit, which aims to celebrate the cultural connection between the Negro Leagues and Spanish speaking countries.

"You want to educate not just the area, you want to educate the whole world," said Wilson, who played for Kansas City from 1976-90. "If you can take one little step at a time, then all those steps equal a big step. That's what we're trying to do, and for me to be a part of it is something I cherish, and I just want to keep it going."

In addition to the exhibit opening on Saturday, former Negro Leagues players held a discussion and an autograph session at the museum.

Dick Kaegel is a reporter for MLB.com. Jackson Alexander is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.