LONDON: Czech veteran Barbora Strycova, who is pondering retirement, marched into the quarter-finals at Wimbledon on Monday beating 21st seed Belgian Elise Mertens 4-6, 7-5, 6-2.

It is the second time the unseeded 33-year-old, who beat fourth-seeded Kiki Bertens in the previous round, has reached the quarter-final stage, the previous occasion in 2014.

Strycova will play either compatriot and two-time Wimbledon champion Petra Kvitova or Britain's French Open semi-finalist Johanna Konta in Tuesday's quarter-finals.