Pippen injured the finger in Monday night's victory over the Los Angeles Lakers at Albuquerque, N.M.
The team said Tuesday the injury is listed as a sprain of the ligaments on the medial and lateral side of the finger.
Pippen will sit out Thursday's game against Phoenix and Friday's game at Sacramento. The Trail Blazers, who are 6-0 in the preseason, said he will be ready for the season opener at Vancouver on Nov. 2.
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