The Cubs announced a flurry of roster moves before Tuesday's series opener against the Texas Rangers, including big changes for their bullpen.
Former Cubs closer Kevin Gregg and reliever Kameron Loe, both of whom were acquired over the weekend, were added to the roster and joined the bullpen Tuesday.
Left-hander Hisanori Takahashi was designated for assignment, and right-hander Rafael Dolis was optioned to AAA Iowa to make room on the 25-man roster.
Manager Dale Sveum said the bullpen moves don't change the ninth inning for him. He still doesn't consider anyone in the pen his closer and plans to close by committee if the Cubs have a save situation Tuesday night.
The Cubs also claimed infielder Cody Ransom off waivers from San Diego to replace utility man Brent Lillibridge, who was designated for assignment.
In addition second baseman Darwin Barney, as expected, rejoined the club from the disabled list, taking the roster spot vacated when Steve Clevenger (oblique) went on the DL Sunday