
Elena Rybakina fought from a set down to thrash Iga Swiatek and qualify for the next round of the WTA Finals after Amanda Anisimova eliminated Madison Keys from the tournament.
Rybakina responded from a set down to stun Swiatek in a remarkable comeback, winning 12 of the final 13 games to seal a 3-6 6-1 6-0 win against the World No 2.