Napoli returned to the top of Serie A on Sunday after Nigeria international Victor Osimhen scored the only goal in a hard-fought 1-0 win against Torino.
AC Milan had moved to the top of the table after battling back from two goals down to beat Hellas Verona 3-2 at the San Siro on Saturday.
But Napoli moved back to the summit after Osimhen, who had scored for his country in a 2-0 win against the Central African Republic in World Cup qualifying last week, headed the 81st-minute winner.