The Chicago Cubs bolstered their revamped bullpen on Wednesday, bringing back Brian Duensing with a $7 million, two-year contract. A person with direct knowledge of the situation confirmed the contract to The Associated Press on Wednesday on condition of anonymity because it is pending a physical. Duensing helped Chicago win the NL Central last season, but its bullpen faltered in the playoffs and it was eliminated by the Los Angeles Dodgers in the NL Championship Series.