"Tulo is feeling better; he's still, to be honest with you, having on-and-off discomfort in the front of the hip," Rockies head athletic trainer Keith Dugger said. "We're trying to isolate exactly is this from the strain that he had or is there an underlying hip labrum, something like that, that we can address. Our goal right now is to see if he can make it through the season.
"He's not ready to go out on a rehab assignment. There's no need for him to go to San Diego. He can go back home, get his work in the cages, use the pool for some of the higher-intensity exercise we're doing. We're going to consult with a few doctors."
Dugger would not call the issue with the front of the hip a setback, just "something that isn't going at the rate we would expect." Dugger said the Rockies must be careful, because Tulowitzki will always be at injury risk in the upper leg area because of a torn left quadriceps tendon he suffered in 2008.
Tulowitzki still leads the Majors in batting (.340), on-base percentage (.432) and OPS (1.035).
Thomas Harding is a reporter for MLB.com. Read his blog, Hardball in the Rockies, and follow him on Twitter @harding_at_mlb This story was not subject to the approval of Major League Baseball or its clubs.