By Gregory Crawford @wchoops
Memphis, Portland, OKC and Sacramento are the four NBA cities never to host an NBA all-star game. The schocking part of the above is Portland. The 20-21 season will mark the Trail Blazers 50th anniversary in the league. For the record, Portland consistently is in the top 10 of seating capacity sold in the league and at one time held the record for North American sports teams for most consecutive sellouts.