Giannis Antetokounmpo Praises Joe Mazzulla, Criticizes Bucks, Doc Rivers Amid Trade Rumors Milwaukee Bucks superstar recently dished high praise for Boston Celtics head coach Joe Mazzulla, while criticizing his current team. Content Original Link: https://sports.yahoo.com/articles/giannis-antetokounmpo-praises-joe-mazzulla-190842237.html