Top seed Svitolina stunned in Tenerife

The upsets at the WTA Tour's Tenerife Ladies Open have continued with top seed Elina Svitolina crashing out in the first round.

The Ukraine world No.6 led by a set against Camila Osorio, when play was halted due to bad light on Tuesday, and when play resumed on Wednesday took a 2-0 advantage to appear on course for a routine win.

However, Osorio bounced back to win five games in a row on her way to forcing a deciding set.

The Colombian then won the final four game of the encounter to seal a comeback 5-7 6-3 6-2 victory.

The 19-year-old had not got past the opening round in five of her past six tournaments but proved too good for Svitolina.

The 63rd-ranked Osorio will play Egypt's world No.64 Mayar Sherif for a quarter-final spot.

Already through to the last eight are a trio of unseeded players - after Svitolina's defeat meant six of the eight seeded players were bundled out in the opening round.

Ann Li beat Varvara Gracheva 6-4 6-2 while Anna Karolina Schmiedlova defeated Jaqueline Cristian 6-2 7-5.

Alize Cornet is through after her match against Xinyu Wang ended with the Chinese having to retire injured in the tird set with the Frenchwoman ahead 4-1.

The match between Donna Vekic and Romania's Irina-Camelia Begu was suspended at 6-4 1-1 in favour of the Croatian.