Feltner will be called up from Triple-A Albuquerque to start the first game of Tuesday's doubleheader with the Padres in San Diego, Patrick Lyons of TheDNVR.com reports.
Feltner has started seven games for the Rockies this season and owns a 5.59 ERA, 1.35 WHIP and 35:10 K:BB in 37 big-league innings. Unless Colorado deals away another starting pitcher prior to Tuesday's trade deadline, Feltner will likely be headed back to Albuquerque immediately after his outing against San Diego.