- Jesse Rogers, Chicago Cubs beat reporter
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Rosscup, 25, was a September call-up last season, posting a 1.35 ERA in 10 relief appearances. He was acquired in January of 2011 as part of an eight-player trade with the Tampa Bay Rays in which the Cubs also received pitcher Matt Garza.
As per MLB rules, teams can add a 26th man specifically for day/night doubleheaders.