Xherdan Shaqiri scored his first goal for Inter Milan in a 2-0 win over nine-man Sampdoria in the Coppa Italia last 16.
Juventus moved five points clear in Serie A with a 4-0 win over Hellas Verona on Sunday, while Sampdoria beat Parma.
Atalanta upset the odds to beat AC Milan 1-0 at the San Siro for what was only their fourth win of the Serie A season.
Juventus won 2-0 at Napoli on Sunday night to pull three points clear at the top of Serie A after Lazio earlier held Roma.
A late goal from Chievo substitute Dejan Lazarevic denied Atalanta victory as Sunday's match finished in a 1-1 draw.
Roma edged Udinese 1-0 on Tuesday afternoon to close the gap on Serie A leaders Juventus to a point.
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