<div class='quotetop'>QUOTE </div><div class='quotemain'>Starting small forward Andrei Kirilenko "tweaked his back" late in practice Thursday morning and later visited with a team chiropractor, Jazz general manager Kevin O'Connor said. It was not immediately certain how the injury will impact Kirilenko's availability for Saturday night's game at Portland. "I really think it depends on how it is (today)," O'Connor said. Kirilenko missed six games due to back spasms during the 2005-06 season, but none because of his back last season or earlier this season. He did miss one game late last month with a biceps/shoulder strain. HARPRING UPDATE: He had hoped to get it done this week, but because of scheduling issues Jazz forward Matt Harpring will wait until Jan. 23 to undergo a colonoscopy and biopsy as doctors continue to seek a cause for his frequent gastrointestinal issues. Earlier testing prompted the need for further examination for Harpring, who has missed four games this season after becoming ill. Harpring does not expect to miss any games because of the colonoscopy, and he suggested Thursday that he anxiously awaits the exam. "I do want to make sure there's nothing wrong," Harpring said.</div> Source: Desert Morning News