It wasn't easy but Alexander Zverev is into the fourth round of Roland Garros. He was forced to save a match point in the fifth set against world No. 29 Damir Dzumhur in a dramatic 6-2, 3-6, 4-6, 7-6 (3), 7-5 win. 

Could this be the turning point for Zverev at Grand Slams? It's too soon to tell. Though the world No. 3-ranked Zverev has won eight career titles—including three ATP Masters 1000 crowns—he has yet to find success at the Grand Slam level. In fact, his win on Friday marks his first Top-50 win at a major. 

He's also somehow only made the fourth round once before, at Wimbledon last year. With all of his success, it's easy to forget just how young Zverev is. The 21-year-old is making just his third main-draw appearance at Roland Garros. 

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