No. 1 seed Frances Tiafoe smashed 21 aces without a double fault to defeat British qualifier Daniel Evans 6-7 (10), 7-6 (4), 6-3 in two hours and 39 minutes in the second round of the Almaty Open in Kazakhstan on Thursday. The American charged back from a 4-1 deficit in the first-set tiebreaker and served for set point twice, but Evans pushed him aside and won the set on his fourth attempt. The second set played out in a similar way until Tiafoe scored the final four points of the tiebreaker.