Soccer-Icardi's last-gasp penalty gives Inter 3-2 derby win

(Updates on Milan derby)

MILAN, Oct 15 (Reuters) - Inter Milan snatched a dramatic 3-2 win over AC Milan in Sunday's derby thanks to a last-minute penalty from Mauro Icardi, who completed his hat-trick and condemned their gallant opponents to a third successive league defeat.

Milan twice hit back to equalise but were sent tail-spinning towards a crisis after defender Ricardo Rodriguez hauled down Danilo D'Ambrosio at a corner and Icardi converted his ninth league goal of the season.

Inter's win kept them second and unbeaten in Serie A with 22 points from eight games, two behind leaders Napoli who have a 100 percent record following their win at AS Roma on Saturday.

Milan, on the other hand, have dropped to tenth with four wins and four defeats - far below the level expected of a side who spent more than 200 million euros ($236.3 million) in the close season. ($1 = 0.8465 euros) (Writing by Brian Homewood; Editing by Christian Radnedge)