Slovak footballer Robert Bozenik scored twice to lead Boavista Porto to a 3-2 victory over Benfica Lisbon in the first round of the Portuguese top-flight on Monday. The 23-year-old striker scored in the 55th minute to level the scores at 1-1. Then, in the 13th minute of extra time, he sealed the home side's victory over the reigning champions. After a mistake by the Benfica defence, Bozenik took aim at the goalkeeper himself and beat him with a shot inside the near post. It was the Slovak international's fifth and sixth league goals for Boavista, having netted four times in 23 appearances last season. Both teams finished the game with 10 men, with visiting striker Petar Musa seeing red in the 50th minute and the referee sending off Bruno Lourenco in the ninth minute of extra time.