CINCINNATI — The Cincinnati Reds acquired left-handed reliever Sean Marshall from the Chicago Cubs on Friday for young lefty starter Travis Wood and two other players.

CINCINNATI — The Cincinnati Reds acquired left-handed reliever Sean Marshall from the Chicago Cubs on Friday for young lefty starter Travis Wood and two other players.

It was the second time in a week that the Reds gave up several prospects for pitching help. They earlier sent four players, including Edinson Volquez, to San Diego for starter Mat Latos.

The 29-year-old, 6-foot-7 Marshall was 6-6 with a 2.26 ERA last season. He had five saves. The Reds have been in talks to try to re-sign closer Francisco Cordero, who became a free agent after last season.

"Sean has been one of the best and most durable relievers in baseball the last couple of seasons," Reds general manager Walt Jocketty said in a statement.

The 24-year-old Wood made 35 starts for the Reds over two seasons. He finished 6-6 with a 4.84 ERA in 2011, with a stint in Triple-A after struggling early in the year.

The Cubs also get 24-year-old outfielder Dave Sappelt, who batted .243 in 38 games with the Reds, and 19-year-old infield prospect Ronald Torreyes, who batted .356 in 67 games for Class A Dayton.

"Twenty-four-year old left-handed starters who have already had success in the big leagues don't grow on trees," Cubs president of baseball operations Theo Epstein said. "We had to give up a great relief pitcher in Sean Marshall and someone we were proud to call a Cub, but we think to acquire Wood and the two young guys, it was worth doing."

Wood made 17 starts for the Reds in 2010, going 5-4 with a 3.51 earned run average. He took a perfect game into the ninth inning against the Philadelphia Phillies before giving up a double to Carlos Ruiz, and left after finishing the 9th with the score tied at 0.

He began last season in the Reds' starting rotation, made 10 starts for Louisville, then returned to Cincinnati. He also had four relief appearances for the Reds last season.

"He had a little bit of a down year last year, a little bit of a sophomore slump, but we still think all the ingredients are there to make him an excellent starting pitcher in the big leagues and you tend to not be able to get guys like that after their strong rookie years," Epstein said. "But sometimes you have a chance to get them after they take a little bit of their lumps on the learning curve."