Alexandrova has stepped in to replace Keys following Andreeva, currently ranked as world No 9, decided against participating because of not being fit to compete today, as stated by the Women's Tennis Association.
Current reports have highlighted concerns about how players are facing challenges by the tournament organizers.
Greetings to the latest installment at the WTA Finals. Although all contests promise excitement, the main event showcases Iga Swiatek facing off with Amanda Anisimova.
Their previous encounter at Wimbledon four months ago was remarkably one-sided, with Swiatek securing a commanding 6-0, 6-0 victory. Nevertheless, the American player delivered a remarkable comeback just weeks later, defeating her opponent in convincing fashion during the New York tournament.
This crucial encounter marks the third chapter of their ongoing battle, with the victorious player advancing to the next round in Riyadh.
Before that contest, Rybakina will compete against Ekaterina Alexandrova instead of Madison Keys. The American player pulled out due to health issues in what represents a meaningless match, paving the way for the tenth-ranked player to step in. Rybakina aims to continue her perfect streak, having already beaten both her Polish rival and Anisimova to secure her semi-final spot.