The Greek will face Reilly Opelka next.
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John Isner, Reilly Opelka, and Frances Tiafoe moved to the third round.
The Italian won his third career ATP singles title
The American will face Jannik Sinner in Final
The Italian defeated Steve Johnson 6-4 6-2 on Friday
The South African moves into the quarterfinals in Washington.
The Spaniard won the epic match that lasted more than 3 hours.
The American moves into the round-of-16 at the Citi Open
The two-seed will face the up-and-coming Jenson Brooksby next
The Spaniard will make his Citi Open debut on Wednesday
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