France, Aug. 24 -- Less than a week after competing in therevamped mixed doubles event, some of the world's top tennis players - Novak Djokovic, Carlos Alcaraz, Gael Monfils and Iga Swiatek - will start their quests for the US Open singles crown.

Djokovic, 38, opens against 19-year-old American Learner Tien on Monday. The Serb is chasing a record 25th singles title at the Grand Slam tournament venues inMelbourne, Paris, London and New York.

Fellow 38-year-old Monfils will lend his renowned showmanship to an opening round tie againstRussian Roman Safiullin.

The Frenchman is playing his 16th US Open. He reached the semifinals in 2016. Djokovic has reached the last four in New York 13 times, winning four titles and losing six finals.

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