Rockies acquire RHP Jair Jurrjens from Reds
Jurrjens signed a minor league contract with Cincinnati in May, and was 2-3 with a 4.46 ERA at Triple-A Louisville.
He has a 53-37 record with a 3.63 ERA in seven major league seasons, including five with Atlanta. He last pitched in the majors in 2013, appearing in two games with Baltimore.
Riggins was playing at Double-A Tulsa.
The Rockies have used 12 starting pitchers this season, the most in the majors, and have the worst team ERA, 4.99.
A team spokesman said Wednesday that Jurrjens will join the Rockies' top farm club in Colorado Springs, Colorado.
Copyright 2014 by The Associated Press
This story is from ESPN.com's automated news wire. Wire index
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