UNIONDALE, N.Y. -- Dudi Sela of Israel upset No. 8 seed Nikoloz Basilashvili of Georgia 6-4, 6-4 in the first round of the New York Open.
Ivo Karlovic of Croatia edged American Jared Donaldson 6-4, 7-6 (4) behind 20 aces in the other first-round match on Monday. The ATP tournament is in its first year on Long Island after moving from Memphis.
No. 6 seed Ryan Harrison, the 2017 champion in the final year in Memphis, beat fellow American Donald Young 6-3, 7-6 (4) in a heated match.
Frances Tiafoe rallied to beat 17-year-old Sebastian Korda, the Australian Open boys' champion, 4-6, 6-4, 6-2 in an all-American match.
The top four seeds all received byes. US Open runner-up Kevin Anderson of South Africa is No. 1, followed by Americans Sam Querrey and John Isner, and France's Adrian Mannarino.