The Chicago Cubs placed right-handed reliever Carlos Marmol on the 15-day disabled list with a right hamstring strain, the club announced Saturday.
In his place, the Cubs brought up right-hander Casey Coleman from Class AAA Iowa.
Marmol, who recently lost his job as the team's closer, is 0-1 with a 6.35 ERA and two saves in 15 appearances this season.
Coleman is 2-3 with a 3.48 ERA in seven games (six starts) for Iowa this year. His father and grandfather, both named Joe, also pitched in the majors. The Colemans are the only family with three generations of pitchers in major league history.