The 24-year-old clearly hadn’t managed to regain his composure in the third set though as Kyrgios soon took control. Kyrgios clearly wanted the match over as he yelled: “I want to go to bed.”
And the Aussie was in no mood for the third set to reach a tiebreak as he broke early and took a 2-0 lead. Kyrgios was barely troubled on his serve with Tiafoe’s head appearing to drop and the 27-year-old took full advantage as he secured the double break before serving out for the match.
He now moves on to face Mikael Ymer in the semi-finals of the Citi Open, who beat Andy Murray in the opening round earlier this week. No 1 seed Andrey Rublev takes on Yoshihito Nishioka in the other semi-final.