Reilly Opelka blasted his way into the third round at Wimbledon on Wednesday as the giant 21-year-old American's serve eventually proved too hot to handle for triple grand slam champion Stan Wawrinka in a high-octane five set duel.

Wimbledon: Reilly Opelka blasts past Stan Wawrinka into third round

Naomi Osaka's quest for a third consecutive Grand Slam title almost came to an abrupt end on Tuesday as a number of top players struggled to book their spots in the second round of the French Open.

French Open: Top seed Naomi Osaka flirts with early exit, Victoria Azarenka and Del Potro also struggle

Croatia's Ivo Karlovic became the oldest man to win a match at the French Open for 46 years on Tuesday as he beat Spain's fellow veteran Feliciano Lopez in a first-round duel.

French Open: Croatia's Ivo Karlovic becomes oldest man to win match at Roland Garros in last 46 years

Mum's the word: Serena has fences to mend

Bashing 39 aces to match his age, Ivo Karlovic became the oldest man to win a match at the Australian Open in over 40 years as he felled Poland's Hubert Hurkacz, a man 18 years his junior, to reach the second round on Tuesday.

Australian Open: Ivo Karlovic, 39, defies Father Time to reach second round

Ukrainian 15-year-old Marta Kostyuk became the youngest player to reach the third round of a grand slam in over 20 years

Australian Open: Oldest Ivo Karlovic, youngest Marta Kostyuk enter third round

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