KANSAS CITY -- Orioles center fielder Adam Jones prides himself on knowing the ground rules of every American League ballpark, and a trip to Kauffman Stadium reinforced why that kind of homework is important.

On May 4 last season, Jones chased a shot to the alley in left-center at Kauffman, but threw up his hands as the ball stuck underneath the fence. There were some nervous moments as Kansas City runners circled the bases, but Jones was confident the play would wind up being ruled a ground-rule double.

Jones was proven correct and a runner representing the tying run was eventually sent back to third. The play loomed large as the Orioles got out of the inning and held on to win 3-2.

"You always have to pay attention and know your ground rules," Jones said. "You see a lot of crazy things happen out there."

Showalter undergoes pregame exam

KANSAS CITY -- Orioles manager Buck Showalter, who wasn't feeling well on Wednesday afternoon and underwent an examination, arrived at Kauffman Stadium in time for the first pitch against the Royals.

Showalter wasn't at the ballpark for his standard pregame media session three hours before the game. When Showalter expressed that he wasn't feeling well earlier in the day, trainer Richie Bancells suggested the manager get a precautionary checkup.

"I'm fine," Showalter said after the Orioles' 4-3 win over the Royals in 15 innings. "Richie was cautious and wanted to check it out."

Showalter, in his third season with Baltimore, has guided the Orioles to a 23-14 record entering Wednesday's game, which had Baltimore tied for first place in the American League East.

Former Orioles pitcher Hickey dies at 56

KANSAS CITY -- The Orioles' organization expressed sadness on Wednesday after learning that former left-handed reliever Kevin Hickey had died at 56.

Hickey, who pitched for the Orioles from 1989-91, had an overall record of 9-14 with 3.91 ERA and 17 saves in 231 games spanning six seasons.

Hickey's route to the Major Leagues was unusual, in that he did not play high school baseball. Following a successful stint as a softball player, Hickey was invited to a summer tryout with the White Sox and did enough to be extended a contract. Hickey made his Major League debut four seasons later in 1981.