With a goal scored by 20-year-old striker Francesco Pio Esposito, Inter earned full points on Wednesday night against Lecce.
Pio Esposito scored for 1:0 in the 78th minute and with this result the remaining match of the 16th round ended. Goalkeeper Alain Taho was on the bench for Inter.
Medon Berisha, injured, and Ylber Ramadani, suspended, did not play in Lecce.
Inter with the win leaves with 46 points after 20 matches, six more than Milan who have one game less played. Napoli also has 40 points in 20 matches.