Date of birth: August 28, 1997

Place of birth: Michigan, United States

Height: 6ft 11in (2.11m)

ATP Tour titles: 4

Career-high ranking: 17

Best Grand Slam performance: US Open R4, 2021

UTS appearances: debut

Style and personality:

As the joint-tallest player on the tour, Opelka also possesses one of the most vicious and powerful serves. He can produce a first serve that measures over 140mph, making him one of the toughest opponents to break, especially on hard and grass courts. Opelka won the 2015 Junior Wimbledon tournament, defeating Junior world No. 1 Taylor Fritz en route to beating Mikael Ymer in the final.

Career:

Opelka has served his way to four ATP Tour titles and one doubles title. He also won the Wimbledon Juniors title in 2015. He has made the second week of all four Grand Slam events, and cracked the top 20 last year before injury damaged his ranking. Make no mistake, though, Opelka is a threat to anyone on faster hard court surfaces.

Opelka will be making his debut in UTS Seoul, from November 30 to December 3.