By Charlie Eccleshare and Matthew Futterman The Athletic
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Serving for the second set against Lulu Sun, Donna Vekic double faulted five times — the joint-second highest number in a game in Wimbledon history. It was an incredible implosion, or at least it would have been had we not seen these kind of struggles with Vekic before. She went through an excruciating defeat from an advantageous position against Serbian Olga Danilovic at the French Open.