Wimbledon: Swiatek fends off Kerkhove`s challenge; Boulter stuns Pliskova

French Open champion Swiatek extended her streak but her latest win came after an extended struggle. Poland`s Swiatek overcame Dutch lucky-loser Lesley Pattinama Kerkhove 6-4, 4-6, 6-3 in the second round of Wimbledon on Thursday