Elena Rybakina acknowledges Aryna Sabalenka has been lights out over the last few months but also warns the Belarusian that she is planning to "make it difficult" for her and potentially spoil her world No.

In the Akron WTA Finals Guadalajara Round Robin on Monday, No. 5 Elena Rybakina takes on No. 7 Qinwen Zheng in a clash featuring two of the top 10 players in the world.Rybakina was not able to

China's Zheng Qinwen beat a struggling Elena Rybakina 7-6(4) 3-6 6-1 in a gruelling WTA Finals group stage match on Monday, notching her first career win over the Kazakh in their third meeting.Seventh seed Zheng bounced back from her initial round-robin loss to Aryna Sabalenka to become the second Chinese player,