Born and raised on the Upper West Side of New York City.
Started playing tennis at age five in Central Park, tagging along with his parents.
Currently lives and trains in Boca Raton, Florida.
Father, Milan, is from Serbia and mother, Milanka, is from Bosnia. Parents played table tennis. Father is currently a software engineer, mother is an injury prevention therapist.
Favourite surface is indoor hard, tournament is US Open and shot is forehand.
Graduated from the University of Illinois in 2021 with a Bachelor's degree in Finance, competing on the tennis team for five years.
Favourite food is Japanese.
Favourite movie is Shawshank Redemption.
Hobbies include snowboarding, basketball.
(UPDATED 24 MAY 2025)
Broke into Top 100 in January 2024 after previously peaking at No. 101 in April 2023 and achieved career-high No. 72 in September 2024
Defeated countryman McDonald to reach 2022 Seoul SF in ATP Tour main draw debut as 222nd-ranked LL and upset No. 10 Rublev for biggest win of career to reach 1st ATP Tour final at 2025 Montpellier.
Won Challenger titles at Cleveland, Waco, Shenzhen and Temuco in 2023, highlighted by win over Wu Yibing in Cleveland final and captured latest title at 2025 Oeiras-2.
Made Grand Slam debut at 2023 Roland Garros, losing to eventual champion Djokovic in 1R and defeated Tabilo to earn 1st Grand Slam win at 2024 Australian Open.
Played 5 years of college tennis at University of Illinois, where he was a 2-time All-American and graduated in 2021 with finance degree.