Alexander muller

Next Gen ATP Finals: Japan's former top-10 men's singles player Kei Nishikori leapfrogged 32 spots in the ATP World Rankings, getting into the Top 100 in men's singles as he made an appearance at No. 74 in the latest list released on Monday. Nishikori made the biggest jump in rankings up the ladder in the last week.

Australia's Alex de Minaur, Jiri Lehecka, and Alexander Muller are the other male players in the Top-100 who gained places in the latest rankings.

Nishikori, who was ranked No. 576 and had to use protection when he returned to action at the French Open 2024, reached his first ATP Tour final in six years at the 2025 Hong Kong Open last week after the retirement of Shang Juncheng.