Why are French Open players limiting media duties to 15 minutes?

World number one Aryna Sabalenka cut short her French Open news conference as part of a 15-minute limit on media duties in protest over the prize money on offer. The 15-minute limit is intended to symbolise the 15% of revenue the French Open currently offers, with players demanding an increase. Meanwhile, Jannik Sinner and Iga Swiatek also followed the directive.