Ekaterina Alexandrova booked her place in the last 16 of the Internationaux de Strasbourg after a straight sets win over Lauren Davis on Sunday.

Third seed Alexandrova claimed a comfortable 6-1 7-5 win in 80 minutes to setup a meeting with Clara Burel, who clinched a surprise 6-3 6-1 win over Varvara Gracheva despite being ranked 56 places below her opponent.

Kristyna Pliskova was knocked out following a hard-fought 7-5 6-4 loss to Alize Cornet.

Cornet's reward is a tie with eighth seed Magda Linette, who triumphed 6-2 6-0 in a one-sided match against Nao Hibino.