2010 Chicago Cubs Spring Training: Fontenot, Berg, Colvin Winning Jobs

With just two weeks to go until Opening Day, the Chicago Cubs spent the weekend crystallizing a number of hazily defined roles on their 2010 club.

To the established bullpen core of right-handers Carlos Marmol and Esmailin Caridad and lefty John Grabow, manager Lou Piniella added young right-handed fireballer Justin Berg. Berg, 25, allowed just 10 hits and one walk during his 12-inning audition at the end of last season. This spring, opponents have logged only one hit and two walks in six innings against him.

With Berg now a definite part of the mix, the team has only one open spot remaining in its bullpen, as would-be starters Sean Marshall and Jeff Samardzija seem assur...

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