Tennis World Divided After Serena Williams’ US Open Outburst

Voices in the tennis world have spoken out both in support and condemnation of US tennis champion Serena Williams after the angry outburst that cost her a game, and possibly the match, during her US Open final on Saturday.
 
Williams' behaviour divided the tennis world after she called the chair umpire a "liar" and a "thief" and said he treated her differently than male players during her loss to Naomi Osaka of Japan.