Inter won for the eighth time this season away from home in Serie A, the sixth in a row, and maintains first place in the table.
The leader defeated Udinese, the only "small" team to take their measure in the first part of the season - it was 1:0 in Udine with the stamp of captain Lautaro Martinez in the 20th minute.
The Argentine had a great chance and before scoring his 11th goal of the season on a pass from Francesco Pio Esposito, the visitors created several more chances to double their lead before the break. However, it remained 1-0 until the end with minor problems in the finish when the "zebras" went for all or nothing...
"Nerazuri" have 49 points after the 21st round, six more and a match more than second-placed Milan, who await Lecce on Sunday.
Napoli has the same number of points as Milan, having ended their three-draw streak.
The champion beat Sassuolo 1:0 at the Diego Maradona Stadium. The decisive goal was scored by Stanislav Lobotka in the 7th minute..
Two favorites recorded victories, and the third faltered - Juventus lost to Cagliari in Sardinia.
And in that duel, one goal was decisive - Luka Maciteli scored a brilliant goal in the 65th minute.
Montenegrin national team player Vasilije Adžić was on the field from the 88th minute.
Bonus video: