Sports · Asked by SquareOffs Sports 62 Votes What caused Serena's loss at the 2018 US OPEN? x Share Embed Share on Facebook Share on X small medium wide <script type="text/javascript" src="//squareoffs.com/assets/embed.js"></script><iframe id="embed_square_off_13349" class="squareoffs-embed" src="//squareoffs.com/square_offs/13349?category=sports&publisher=squareoffs%20sports&answer_a=A%20Bad%20Umpire&answer_b=Loss%20of%20Composure&size=small&keyword=A%20Bad%20Umpire&keyword=Loss%20of%20Composure&keyword=tennis&keyword=SerenaWilliams&keyword=USOpen" width="300" height="0" frameborder="0" scrolling="no" referrerpolicy="no-referrer-when-downgrade" allow="fullscreen; identity-credentials-get"> 32% A Bad Umpire A Bad Umpire 0 68% Loss of Composure Loss of Composure 0 Share on Facebook Share on X Share on LinkedIn Copy Link 32% A Bad Umpire Add Comment Comment Share with friends 0 Comment No one has commented yet 68% Loss of Composure Add Comment Comment Share with friends 0 Comment No one has commented yet