TOPSHOT - Germany's Alexander Zverev shows a feather to the umpire while arguing over a point during his men's singles quarterfinal match against the USA's Tommy Paul on day ten of the Australian Open tennis tournament in Melbourne on January 21, 2025. (Photo by DAVID GRAY / AFP) / -- IMAGE RESTRICTED TO EDITORIAL USE - STRICTLY NO COMMERCIAL USE -- (Photo by DAVID GRAY/AFP via Getty Images)