Fredy Guarin's second-half strike secured a 1-0 derby win for Inter against Milan and sent it top of the Serie A table.
Inter clinched the derby bragging rights against Milan as Fredy Guarin's strike gave it a 1-0 win at San Siro on Sunday.
The Colombian fired home just short of the hour mark as the Nerazzurri kept up their flawless start to the Serie A season in an open contest.
Luiz Adriano spurned two clear openings in the first half while Mauro Icardi - passed fit after a thigh injury to lead Inter's attack - should have done better when put clean through by Stevan Jovetic.