Venus Williams continued to defy the years on Wednesday with a powerful display as she defeated world number one Angelique Kerber in straight sets to reach the Miami Open semi-finals.
The 36-year old American reached the Australian Open final earlier this year and is now into the last four at Key Biscayne for the first time in seven years after a 7-5, 6-3 victory over Kerber.
Her opponent on Thursday will be number 10 seed Johanna Konta, who became the first British woman to reach a semifinal at Key Biscayne earlier in the day after staging a comeback to beat Simona Halep 3-6, 7-6 (7), 6-2.
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Williams is yet to lose a set at the tournament, and was rarely in trouble in the first set despite being broken twice early on. She took the first set when Kerber hit two consecutive double faults when serving to take it into a tiebreak.
The second set was more straightforward, with Williams breaking Kerber in the fourth game and then holding serve before sealing the match at the fifth attempt.
It was Williams' 15th career win against a world number one player, but the first for three years. Seeded 11, Venus is now closing in on a first title in Miami since 2001.