Cuddyer (shoulder) will kick off a rehab assignment with rookie-level Grand Junction on Wednesday, Nick Groke of the Denver Post reports. Cuddyer is expected to play three games with the rookie-level club, rotating between right field, first base and designated hitter. He's then expected to move his rehab to Double-A Tulsa beginning next Wednesday, where he'll be slated to play in four more games. That puts Cuddyer roughly on track to return Aug. 18, though the Rockies could easily adjust that if the 35-year-old bounces back from consecutive games better than anticipated.