Pretty even game, but Napoli took their chances.
Think Roma made the same mistake as they did in the first game - they were caught between pressing up and sitting deep and just ended up in a nothing-y position.
Also though De Rossi was caught not really committing to one thing or the other. He was sort of vaguely following Hamsik, but not going and properly marking him, but that was still dragging him away from the key position in front of the centre halves which left Roma looking exposed at times.