Napoli saw off a battling Udinese to cut the deficit to title rivals Juventus back to four points.
Radja Nainggolan will be a huge addition for Inter, according to coach Luciano Spalletti.
Mauro Icardi's goals in 2017-18 should have put him in the Argentina squad at the World Cup, says Juan Sebastian Veron.
Sergej Milinkovic-Savic refused to be drawn on speculation surrounding his club future with Lazio after Serbia's defeat to Switzerland.
Justin Kluivert has looked set to move to Serie A for some time and his move from Ajax to Roma has now been completed.
The Roma midfielder has confirmed he will leave the club to move to Serie A rivals Inter, with a medical set to take place next week.