--SS Tony Pena Jr. underwent surgery Tuesday on a fractured hamate bone in his left hand, which he injured fouling off a pitch in the 10th inning Saturday at Minnesota. General manager Dayton Moore said he expects Pena would be out six to eight weeks. "I've got to believe that if he heals up the way that we hope he will, hopefully it doesn't run into a two-month ordeal," Royals manager Trey Hillman said. "Hopefully, it's the four to six (weeks) and we can get him back." Pena is on the 15-day disabled list.

--C Brayan Pena, who was designated for assignment on April 25 when RF Jose Guillen came off the disabled list, cleared waivers and has been outrighted to Class AAA Omaha. Pena hit .286 with two doubles and an RBI in four games. "That's unfortunate for Brayan personally, but I'm glad we've still got him," manager Trey Hillman said of Pena clearing waivers. "There are a lot of things about Brayan I like -- his energy, the improvement I saw defensively in spring training, and he got in two big ballgames for us and did well."

--2B Alberto Callaspo homered in the third inning Tuesday and has hit safely in seven straight and in 20 of his past 22 games. After going 441 at-bats without a home run, the longest among active players in the majors, before his April 24 home run, Callaspo had to go only 39 at-bats before his second career home run.

--C John Buck's game-winning single in the 11th inning Tuesday came with the bases loaded. It was the Royals' first hit this season in 11 at-bats with two out and the bases loaded.

MEDICAL WATCH:

SS Tony Pena Jr. (fractured hamate bone in left hand) went on the 15-day disabled list May 3. He had surgery May 5, and he is expected to miss four to six weeks.

RHP Doug Waechter (right elbow strain) went on the 15-day disabled list retroactive to April 18. He began a minor league rehab assignment May 4.

3B Alex Gordon (torn cartilage in right hip) went on the 15-day disabled list April 15. He had surgery April 16 and could be out until the All-Star break.

LHP John Bale (thyroid surgery on March 3) went on the 15-day disabled list retroactive to March 27. He pitched in extended spring training on April 22, and he was scheduled to begin a minor league rehab assignment May 5.

ROTATION:

RHP Gil Meche

RHP Zack Greinke

RHP Kyle Davies

RHP Sidney Ponson

RHP Brian Bannister

BULLPEN:

RHP Joakim Soria (closer)

RHP Kyle Farnsworth

LHP Ron Mahay

RHP Juan Cruz

LHP Horacio Ramirez

RHP Robinson Tejada

RHP Jamey Wright

CATCHERS:

Miguel Olivo

John Buck

INFIELDERS:

1B Mike Jacobs

2B Alberto Callaspo

SS Mike Aviles

3B Mark Teahen

INF Luis Hernandez

OUTFIELDERS:

LF David DeJesus

CF Coco Crisp

RF Jose Guillen

OF Mitch Maier

DH Billy Butler

OF/INF Willie Bloomquist