The Rossoneri had the Colombian to thank for ending their streak in Serie A without a win, buying Vincenzo Montella’s struggling side some breathing space
Reports this week suggested that Bacca had a falling out with Montella and the Colombia international was dropped for Gianluca Lapadula at Stadio Luigi Ferraris.
However, Bacca came up trumps off the bench by coolly netting the winner with five minutes remaining to settle Friday’s contest.
Bacca, who this week claimed he almost joined Paris Saint-Germain in the transfer window, scored Milan’s goal at the end of a flurry of late activity in Genoa.
Sampdoria saw two goals disallowed and the visitors had appeals for a blatant penalty dismissed, while respective goalkeepers Emiliano Viviano and Gianluigi Donnarumma also made fine saves to keep the scores level.