World number one Carlos Alcaraz charged into the quarter-finals of the ATP Miami Open with a convincing 6-4, 6-4 victory over Tommy Paul on Tuesday but second seed Stefanos Tsitsipas was knocked out by Russian Karen Khachanov. Alcaraz, the defending Miami champion and also the winner at Indian Wells earlier this month, will face another American in the last eight when he comes up against Taylor Fritz. Paul came into the match having won his last 12 encounters with Spanish players, including wins over Alcaraz and Rafael Nadal last year, but he was unable to get a foothold in the contest.
