Johanna Konta crashed out of the Internazionali BNL d’Italia in Rome at the third-round stage after a three-set defeat to Venus Williams.

The British number one was facing the American veteran for the first time since March, when victory sent her into the final in Miami.

But it was a different story on the Italian clay as Williams produced two emphatic sets to triumph 6-1 3-6 6-1 in just under two hours.

Fifth seed Konta had shown no ill effects from her first-round exit in Madrid last week with an easy second-round win over Yulia Putintseva.

But she was no match for Williams in a powerful first set in which the 36-year-old American broke twice whilst saving the solitary break point on her own serve.

Konta recovered well with a much more solid second set but Williams upped her game again in the third, seizing her only two break-point chances to wrap up a convincing win.

Elsewhere, qualifier Anett Kontaveit continued her stunning run in Rome by brushing aside Mirjana Lucic-Baroni to book her place in the quarter-finals.

The Estonian, who dispatched world number one Angelique Kerber with ease in the previous round, dominated against her veteran opponent and won 6-1 6-1 in just 54 minutes.

Next up for Kontaveit will be Romanian world number four Simona Halep who recovered from a second set lapse to beat Anastasia Pavlyuchenkova 6-1 4-6 6-0.

Third seed Garbine Muguruza also reached the last eight with a 7-5 6-4 win over Julia Goerges, and will face Williams.

World number 33 Daria Gavrilova is another qualifier to make it through to the quarter-finals after she came from behind to beat Russian veteran Svetlana Kuznetsova 2-6 7-5 6-4.

And there she will take on 15th seed Kiki Bertens after the Dutch player proved a convincing 7-6 (3) 6-1 winner over Ekaterina Makarova of Russia.