MELBOURNE: The Brazilian pair of Luisa Stefani and Rafael Matos beat India’s Sania Mirza and Rohan Bopanna 7-6 (2), 6-2 on Friday to win the Australian Open mixed doubles title in Mirza’s last match at a Grand Slam tournament before she retires. Mirza, who has won six Grand Slam doubles championships — three in mixed, including the 2009 Australian Open — will retire next month after a tournament in Dubai. The Brazilian pair took a 3-0 lead in the tiebreaker and Mirza and Bopanna fought back to 3-2, but that was to be the last points the Indian duo took. They missed two overheads in a row, including Mirza’s shot into the net on set point. Stefani and Matos broke Mirza’s serve in the fourth game of the second set to go up 3-1, with the break point coming after a lengthy exchange between the teams. Stefani and Matos are undefeated as a team, having won all seven matches together at the United Cup and at Melbourne Park.