Harden will receive $6.5 million for 2010 and a $11.5 million mutual option with a $1 million buyout, sources told ESPNDallas.com's Richard Durrett. Harden is taking a physical Thursday, which includes an MRI, before the club will agree on a deal with him. If all goes well, the club could schedule a press conference later in the evening.
Harden was 9-9 with a 4.09 ERA in 26 games for the Cubs in 2009. The Cubs did not offer Harden salary arbitration, making him a free agent. Harden made $7 million last season in Chicago.
Harden, who would be pitching for his third major league team, has a 50-29 record with a 3.39 ERA in 127 starts.
His season ended a week early in 2009 due to arm fatigue. He also spent time on the disabled list with a mid-back strain. He made 31 starts in 2004 when he was a member of the Oakland Athletics but hasn't made 30 starts in a season since.