"He'll be the exact same James Shields next time he steps on the mound, " Yost said.

WSJ: Shields' solid again as Royals lose to Yankees 3-2

New York LHP Andy Pettitte will start Saturday night against Royals RHP James Shields.

WSJ: Overbay, Suzuki power Yankees past Royals, 11-6

"We're still right in the hunt, but it's a long season, " said James Shields, who once led the Rays to the postseason.

WSJ: Royals lose 4-2 to Yankees, 6th defeat in 7 games

James Shields (2-3) was hurt by a throwing error on third baseman Mike Moustakas in the second inning that resulted in the Yankees' first run.

WSJ: Pettitte, Rivera help Yankees beat Royals 3-2

James Shields (2-3) was hurt by a throwing error on Moustakas at third base in the second inning that resulted in the Yankees' first run.

WSJ: Pettitte, Rivera help Yankees beat Royals 3-2

Davis (2-3) arrived in Kansas City along with James Shields from the Tampa Bay Rays in an eyebrow-raising deal that sent some of the Royals' top prospects to Florida.

WSJ: Royals pounded by Overbay, Yankees in 11-6 loss

Kansas City picked up manager Ned Yost's option for 2013 over a year ago, so he's back and under pressure to guide the Royals at least into contention after the team dealt Wil Myers and a package of other top prospects for James Shields and Wade Davis.

WSJ: Gardenhire, Girardi, Manuel facing the pressure

Periphery players like Paul Shields, Bryn Cunningham and James Topping may also be asked to travel.

BBC: Eddie O'Sullivan has an important task ahead