The Reds, continuing their search for bullpen help, are talking to the Cubs about a trade for left-hander Sean Marshall, according to major league sources.

The Cubs are targeting left-hander Travis Wood, a pitcher who intrigued team president Theo Epstein last season when Epstein was GM of the Red Sox, sources say.

It is not known whether other players might also be part of the deal.

Marshall, 29, has been one of the game’s top left-handed relievers the past two seasons. He will earn $3.1 million in 2012, then become eligible for free agency.

Wood, 24, endured two minor league demotions last season, finishing 6-6 with a 4.84 ERA in 22 games, including 18 starts, with the Reds. He is expendable in part because of the Reds’ recent acquisition of Mat Latos from the Padres.

The Reds rotation currently includes right-handers Latos, Johnny Cueto, Bronson Arroyo, Mike Leake and Homer Bailey. Plus, the team plans to look at lefty Aroldis Chapman as a starter in spring training.

Marshall, who had a 2.26 ERA in 75 2/3 innings last season, likely would remain a setup man for the Reds. General manager Walt Jocketty has said that the team continues to look for a closer; the return of free agent Francisco Cordero remains a possibility.

-Ken Rosenthal and Jon Paul Morosi