CHICAGO - The Cubs have agreed to one-year contracts with a pair of left-handers, giving Clayton Richard $2 million and recently acquired reliever Rex Brothers $1.42 million.

Richard was 4-2 with a 3.83 ERA in three starts and 20 relief appearances. He can make $500,000 in performance bonuses based on starts: $100,000 each for 10 and each additional five though 30. He also can earn $500,000 for relief appearances: $100,000 apiece for 50 and each additional five through 70.

Brothers was obtained from Colorado last week for minor league pitcher Wander Cabrera. The 27-year-old began last season at Triple-A Albuquerque, where he went 5-2 with a 4.46 ERA. In two stints with the Rockies, the former first-round draft pick was 1-0 with a 1.74 ERA. In parts of five seasons, he was 16-11 with a 3.42 ERA in 286 appearances with Colorado.

Chicago did not offer contracts Wednesday to left-handers Ryan Cook and Jack Leathersich, who became free agents. Leathersich was not eligible for arbitration.

The Cubs have six arbitration-eligible players remaining: pitchers Jake Arrieta, Travis Wood, Pedro Strop, Hector Rondon, Justin Grim; and outfielder Chris Coghlan.