Intermelan regained second place from Atalanta, by defeating Napoli 2-0, at the opening of the 37th stage of the Italian Football Championship.
Atalanta had a fatal victory in the first game, also Tuesday, against its host Parma 2-1.
Napoli raised its score to 79 points, one point ahead of Atalanta, and the second-place winner will be decided in the last stage, next Sunday, when the two teams meet face to face in Bergamo, knowing that a tie is enough for Inter Milan.
In the first game, Napoli played without the Belgium striker Dres Mertens, the best scorer in his history due to suspension.
After the Belgian striker, Romelu Lukaku, Inter Milan's best scorer this season (23 goals) failed to exploit a defensive error, Danilo D'Ambrosio succeeded in opening the scoring with a creeping shot, from the penalty points from the opening of the scoring (11).
Polish striker, Piotr Zelinski, fired a powerful shot from 25 meters, which was blocked by goalkeeper Samir Handanovic (24). Then Lorenzo Inesenini shot a ball near the right post (34).
Intermelan coach Antonio Conte, who received a yellow card from the match referee, for his repeated protests against his decisions, made an offensive change, expelling Chilean Alexis Sanchez, and instead involving Argentine Laotaro Martinez.
Martinez soon added the second goal, after a powerful shot from 25 meters (74), raising his score to 14 goals this season.
Inter Milan was back from the São Paulo stadium by beating Napoli 3-1 back. In the Atalanta-Parma match, Swede Diane Kulosevsky opened the scoring for Parma (43), while Ukrainian Ruslan Malinovsky (70) and Argentine Babu Gomez scored the two goals of the guests (84).
The confrontation of Atalanta and Intermilan will be a final test for the first, before his position with Paris Saint-Germain in the quarter-finals of the European Champions League on August 12 in the Portuguese capital Lisbon, which will be held with a single confrontation system.
Atalanta reached this role of the most important continental competition, in its first participation in its history, after it finished last season of "Seri A" third.
The northern club maintained its record free of defeats, for the seventeenth consecutive match in the league (13 victories, four draws) and nineteenth in all competitions, as the last defeat returned to January 20 against SPAL.