The Portland Trail Blazers have called off...

The Portland Trail Blazers have called off their trade of guard Jim Paxson to the Cleveland Cavaliers for forward Keith Lee, citing concerns raised by Portland’s team physician about Lee’s knees.

After a physical conducted last week, Dr. Robert Cook expressed doubt about the condition of Lee’s knees. The trade for the 6-foot-9 forward was contingent on both players passing physicals with their new teams.

Blazer spokesman Tim Renn said the decision to abolish the draft-day trade was made by Bucky Buckwalter, Portland’s vice president for basketball operations.

Cavalier Vice President and General Manager Wayne Embry said from New York: “We are unhappy about it and we will contest it.”

Lee, a two-year pro out of Memphis State, did not miss any games with Cleveland or Memphis State because of knee injuries, but Cook said “the probability is for very significant knee problems.”