BOSTON, MA – 1975: Dave Cowens #18 of the Boston Celtics passes against Nate Thurmond #42 of the Cleveland Cavaliers during a game played circa 1975 at the Boston Garden in Boston, Massachusetts. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. Mandatory Copyright Notice: Copyright 1975 NBAE (Photo by Jim Cummins/NBAE via Getty Images)