MEMPHIS, Tenn. -- Darian King, a qualifier from Barbados, knocked off No. 5 seed Bernard Tomic 6-4, 6-4 on Tuesday in the first round of the Memphis Open.
King, ranked 140th in the world, dropped just 12 points in 10 service games and never faced a break-point situation against the 32nd-ranked Tomic.
Taylor Fritz saved three match points in a third-set tiebreaker to beat No. 8 seed Yen-Hsun Lu 4-6, 7-6 (4), 7-6 (7).
Fritz, the runner-up in this event last year, won without ever breaking Lu's serve.
Other winners on Tuesday included No. 7 seed Steve Darcis, Ryan Harrison, Matthew Ebden and Tim Smyczek.
Harrison won 6-3, 7-5 over Konstantin Kravchuk to advance to a second-round matchup with No. 3 seed Sam Querrey. Darcis won 7-5, 3-6, 6-4 over Radu Albot. Smyczek beat Frances Tiafoe 6-3, 5-7, 6-3.
Ebden rallied from a break down in each of the last two sets to beat Peter Polansky 6-7 (4), 6-3, 6-1.
The Associated Press contributed to this report.