
Bournemouth opened the scoring in the 25th minute when Brighton goalkeeper Bart Verbruggen’s loose pass was intercepted before Dominic Solanke netted with a deft lob, but the teams headed into halftime level after Milos Kerkez’s own goal.
Manager Roberto De Zerbi made a double change at the break with Mitoma and Ansu Fati introduced and both players were immediately involved in a sweeping team move which the Japanese winger finished off seconds after the restart.
Brighton hit their stride after going ahead and Mitoma added a third when he found space in between the Bournemouth defence to nod home a Pervis Estupinan cross, ensuring a third straight 3-1 league win for the south coast club.