Domenico Berardi fired a stunning winner as Sassuolo hit back to halt Inter Milan’s 100 per cent start to the Serie A season with a 2-1 win at San Siro.

Italy forward Berardi crashed home a swerving shot from outside the penalty area after Nedim Bajrami’s second-half equaliser had cancelled out Denzel Dumfries’ opener for Inter.

Simone Inzaghi’s side had won all of their opening five league matches to top the table, but Sassuolo produced a second upset in the space of four days after beating Juventus 4-2 at home on Saturday.

Sassuolo made an encouraging start, enjoying an equal share of possession as neither side created a clear scoring chance in the first 30 minutes.

Inter then sparked into life when Nicolo Barella sent Dumfries sprinting down the right, with the latter’s excellent cross headed just over by Marcus Thuram.

Thuram then missed when well placed from another ball in from Dumfries before Jeremy Toljan provided Sassuolo’s best first-half chance as his fierce angled effort was well saved by Inter goalkeeper Yann Sommer.

Sommer was alert again to keep out Bajrami’s low shot before Inter broke the deadlock in first-half stoppage time.

Dumfries cut inside on the right edge of the penalty area and arrowed a low finish into the bottom corner for his second goal of the season.

Martin Erlic headed a golden chance wide for Sassuolo from Berardi’s brilliant cross, but the visitors drew level in the 54th minute.

Berardi was again the provider as his slide-rule pass on the right side of the area was hammered home by Bajrami, with Sommer furious he had allowed the ball to beat him at the near post.

It got worse for Inter soon after. Berardi was allowed to cut inside from the right on to his left foot and he unleashed a brilliant, dipping shot that nestled inside Sommer’s far post.

Inter boss Inzaghi sent on substitutes Carlos Augusto, Stefan de Vrij and Davide Frattesi soon after and the latter forced visiting goalkeeper Andrea Consigli into a low save.

Sassuolo dealt comfortably with Inter’s bid to get back on terms and Armand Lauriente sliced his chance to extend the visitors’ lead wide in the 85th minute.

Lauriente then saw a better effort that would have settled it saved by Sommer before Francesco Acerbi fired straight at Consigli and Lautaro Martinez shot narrowly wide in stoppage time.