Dominic Thiem continued to impress at the Estoril Open as he reached the quarter-finals, but second seed Hubert Hurkacz is out in Portugal.

The Austrian backed up his first round win against compatriot Sebastian Ofner with a 6-2 6-2 straight sets triumph against American Ben Shelton.

It takes the 2020 US Open winner into the last-eight where he will face Quentin Halys after the Frenchman beat fourth seed Roberto Bautista Agut in a 7-6 (7-5) 7-5 triumph.

There will be no Hurkacz however, after the Pole fell to 6-7 (7-9) 6-4 6-2 loss against the unseeded Bernabe Zapata Miralles.

Elsewhere, top seeds Lorenzo Musetti and Dan Evans are both through to the quarter-finals of the Grand Prix Hassan II.

The pair saw straight sets victories see them through the last-16, with the Italian winning 6-2 6-3 against France's Hugo Gaston and the Briton pulling out a 6-1 6-3 victory against Australia's Alexei Popyrin.