Rockies activate RHP Chatwood to start Sunday
The Rockies also recalled infielder Josh Rutledge from Triple-A Colorado Springs.
Chatwood made 15 starts before being placed on the disabled list with right elbow inflammation on Aug. 8. He is 7-4 with a 3.15 ERA with 28 walks and 60 strikeouts. He began the 2013 season with Triple-A Colorado Springs, where he went 2-1 with a 2.91 ERA
Chatwood is 18-21 with a 4.43 ERA in 61 major league games - 52 starts.
Rutledge is batting .211 with six home runs in 67 games with Colorado. He began the season with the Rockies and has been optioned twice to Triple-A.
The Rockies have 39 players on their 40-man roster.