Cubs' Joel Peralta: Expected to join Cubs bullpen

Peralta is expected to join the Cubs' bullpen Monday night, Gordon Wittenmyer of the Chicago Sun-Times reports.

The Cubs inked Peralta to a minor league deal earlier in the month after he was DFA'd by the Mariners. The 40-year-old has made only five appearances at Triple-A Iowa, but he'll come up to provide right-handed depth in the bullpen, with the Cubs slated to send lefty Gerardo Concepcion back to Iowa in his place.