The Cubs signed pitcher Mike MacDougal to a Minor League deal, he was assigned to Triple-A Iowa and had a shaky debut. MacDougal, 35, was released by the Dodgers after compiling a 7.94 ERA in seven appearances. He has 71 saves in his 12-year career. The Iowa Cubs also placed infielder Jonathan Mota on the disabled list with a sore right elbow. Mota had to leave Saturday’s game in the middle of an at-bat after aggravating the injury. He was batting .235 in seven games.

* The Cubs also acquired Minor League left-handed pitcher Hunter Cervenka from Boston as the player to be named to complete the Marlon Byrd-Michael Bowden trade. Cervenka, 22, was originally selected by the Red Sox in the 27th round of the 2008 Draft out of Sterling High School in Baytown, Texas.  Cervenka is 0-3 with an 8.04 ERA (14 ER/15 2/3 IP) in nine relief appearances for Class A Greenville this season. He has 24 strikeouts in 15 2/3 innings, an average of 13.8 strikeouts per nine innings, and has limited left-handed hitters to a .188 batting average. Cervanka has a 1.59 ERA (1 ER/5 2/3 IP) in three relief appearances this month after an 11.70 ERA in April. He will report to Class A Peoria.

– Carrie Muskat