Sebastian Korda's rapid rise: 'He going to be a great one'
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A year ago, Sebastian Korda was ranked No. 220 in the world. After a breakout year, the 21-year-old tennis player is ranked in the top 50 for the first time in his career.
Korda, who won his second-round match against Vasek Pospisil at the Citi Open on Tuesday, is fresh ...