A host of chances were spurned at either end with the two sides looking set to share the spoils in an entertaining draw, before late drama at San Siro.
Domenico Berardi smashed home an injury-time penalty as Sassuolo stunned Serie A leader Inter with a 1-0 victory at San Siro.
The visiting side was indebted to Andrea Consigli, the team's new goalkeeper, who kept Inter at bay with a virtuoso performance, before a clumsy challenge from Miranda on substitute Gregoire Defrel presented Berardi with the opportunity to be the match winner from 12 yards – one he gleefully accepted.