Alexis Sanchez scored twice to earn Inter Milan a 2-1 win at Parma and move them six points clear at the top of Serie A.
The Chilean latched on to a loose ball to open the scoring in the 54th minute after an even first half.
He added a second eight minutes later after fine work by fellow ex-Manchester United forward Romelu Lukaku.
Parma cut the deficit through Hernani but Inter held on in their bid for a first Italian title in 11 years.
A sixth league win in a row moves them six points clear of rivals AC Milan and 10 ahead of champions Juventus, who are third.
Struggling Parma remain 19th, six points from safety, and without a league win since November.