Royals placed 1B Carlos Pena on the 60-day disabled list.
Carlos Pena is expected to miss the rest of the 2013 season after undergoing an emergency appendectomy on Saturday.
Royals purchased the contract of 1B Carlos Pena from Triple-A Omaha.
Royals signed 1B Carlos Pena to a minor league contract; assigned him to Triple-A Omaha.
Astros released 1B Carlos Pena.
Astros designated 1B Carlos Pena for assignment.
Carlos Pena went 0-for-3 in his return to the Astros' starting lineup Wednesday against the Rays.
Carlos Pena will miss the next two games due to a death in the family.
Carlos Pena ripped a three-run, walk-off homer in Thursday's extra-innings win over the Brewers.
Carlos Pena went 3-for-5 with a double, an RBI and his first steal of the year against the Angels on Friday.
Carlos Pena went 0-for-4 on Thursday, dropping his average to .197.
Carlos Pena went 3-for-5 with a couple of doubles Wednesday versus the Mariners.
Carlos Pena hit a two-run homer against the Mets on Saturday.
Astros signed 1B Carlos Pena to a one-year, $2.9 million contract.