Both Napoli and Inter won today.
This is actually an advantage for Napoli1
While they kept the same advantage without earning any points they decreased by 1 the remaining games.
Only 3 games left, 3 easy game for Conte and 1 hard game for Inter against Lazio.
At this point it will be almost impossible for Inter.
Honestly, I don't think the Inter coach is worried about Serie A, even today he put a lot of players that I don't use often, this shows that he is more focused on the Champions League, today they won only thanks to a penalty, which means they had a high risk of losing and even then the best players weren't even on the bench. So if Inter were losing, they wouldn't be able to count on their best players.
Napoli is still three points ahead of Inter. Inter made a very risky squad choice. The manager decided to rest his best players in Italy to use the advantage of the draw he got in Spain. However, they were lucky and managed to win the match. They managed to beat their opponent with a penalty goal, but the game they played was really scary. The opponent could score a goal at any moment and end the match in a draw. Now they can focus completely on the Barcelona match and they will be on the field with all their might to eliminate Barcelona.