Novak Djokovic has withdrawn from the Cincinnati Open for the second consecutive year, tournament organizers confirmed to US media on Monday.

The 24-time Grand Slam champion has opted out of the US Open warm-up tournament following consecutive semifinal exits at the French Open and Wimbledon, where he was defeated on both occasions by world number one Jannik Sinner.

Djokovic also withdrew from Cincinnati last year as defending champion not long after his triumph in the singles event at the Paris Olympics.

The US Open will take place from Aug 24 to Sept 7 in New York City.