US Open, day three: Millman knocks out Kyrgios, plus Sharapova and more – live!

Updates from 87 first and second-round matchesDay two: rain washes out most of play at Flushing Meadows Email katy.murrells@theguardian.com or tweet @KatyMurrells 8.32pm BSTKyrgios says he's not good enough for coach Grosjean. "I'm not dedicated to the game at all". 8.30pm BSTWhile Del Potro looks good to come through this first-round match, that fifth point in the previous game summed up why he’s not often challenging at the business end of tournaments these days. His forehand remains one