Hsieh Su-wei and Chan Hao-ching's decade-long feud exploded at the US Open with mid-match taunts, an umpire confrontation, and a brutal handshake snub.
https://www.foxnews.com/outkick-sports/wild-us-open-doubles-match-devolves-player-box-taunts-cold-net-snub-utter-chaos
https://www.foxnews.com/outkick-sports/wild-us-open-doubles-match-devolves-player-box-taunts-cold-net-snub-utter-chaos