AC Milan came from a goal down to defeat bitter city rivals Inter 2-1 thanks to a quick-fire second-half double to lift the Italian Supercup in Beijing on Saturday.
Manchester United target Wesley Sneijder, whose Inter future has been subject of intense speculation, put Inter ahead on 21 minutes at the "Bird's Nest" Olympic Stadium in the Chinese capital.
Gasperini said he was disappointed his side has failed to capitalise on their first-half dominance during which striker Samuel Eto'o -- who has also been linked with the blue half of Manchester -- went close after being set up by Sneijder.
But Serie A champions AC drew level on the hour when former Inter striker Zlatan Ibrahimovic powered in a towering header. Eight minutes later Kevin-Prince Boateng scored what turned out to be the winner.