A person familiar with negotiations says the Red Sox have agreed to a minor league contract with right-handed reliever Tony Pena Jr.
The person spoke Wednesday on condition of anonymity because the team has not made an announcement.
Pena, the son of former Boston catcher Tony Pena, became a pitcher for Kansas City in 2009 after playing shortstop with the Atlanta Braves and the Royals. Last season he was in the San Francisco Giants system where he pitched in 53 games, all in relief, at Double-A Richmond, where he had a 2.35 ERA, and Triple-A Fresno, where his ERA was 6.60.
The agreement was first reported by ESPN.com.
The Red Sox announced two other moves, claiming catcher Max Ramirez on waivers from Texas and designating righty reliever Matt Fox for assignment.