NBA: Celtics to waive guard Lonnie Walker

NBA schedule released: Celtics-Knicks, Lakers-Wolves on opening night The Boston Celtics are expected to waive guard Lonnie Walker IV, ESPN reported Saturday. Walker, 25, agreed to a one-year deal with the Celtics in August and averaged 7.3 points with 2.5 assists in 16.4 minutes per game over four preseason contests for the Celtics. The move