Roger Federer and Kei Nishikori will take to the tennis court for Uniqlo

Roger Federer wearing Uniqlo in May 2019

Tennis stars Roger Federer and Kei Nishikori are set to go head-to-head for Uniqlo.

The athletes, who are Global Brand Ambassadors for the Japanese fashion label, are set to play a three-set match this October 14 at Tokyo's Ariake Coliseum. The event, dubbed ‘Uniqlo LifeWear Day Tokyo,' marks the second time Federer has played in Japan. It will also feature the brand's other ambassadors, wheelchair tennis players Shingo Kunieda and Gordon Reid MBE, who will play each other in a one-set match.

The event will help publicize the Uniqlo ‘LifeWear concept' -- a philosophy that sees the brand aim to create clothing that "works to improve everyday life for everyone." A percentage of the proceeds from the event will be donated to charity, to support humanitarian and sustainability projects.

"I am sure our ambassadors will inspire all fans in the audience to find both the passion to realize their dreams and the courage required to never give up," said Tadashi Yanai, Chairman, President and CEO of Fast Retailing, in a statement. "In addition, I am pleased that UNIQLO will be able to make a meaningful contribution to society through proceeds of this match."

Since being named a Uniqlo ambassador last year, the Swiss pro Federer has appeared on court sporting the label's high-tech tennis outfits. He also fronted a denim campaign for the brand earlier this year.

Tickets for the matches will go on sale on September 21.