Luciano Spalletti's Nerazzurri won a third straight Serie A match thanks to a header by Lautaro Martinez and a Matteo Politano volley.
Lautaro Martinez scored his first Serie A goal and Matteo Politano volleyed in a screamer as Inter battled to a 2-0 home win over Cagliari, although they survived more VAR drama.
Argentina attacker Martinez netted a first-half header from a Dalbert cross to set Inter on their way to a fifth win in their last six games in all competitions.
Inter, who named stars including Mauro Icardi, Ivan Perisic and Marcelo Brozovic on the bench, spent much of Saturday's San Siro clash on the back foot but Politano's late goal made sure of the points.