Andre Villas-Boas reaffirmed his commitment to FC Porto before challenging his team to help him follow in the footsteps of his illustrious predecessors by lifting the Europa League with a win over Braga.The Porto boss, who cut his managerial teeth under the tutelage of Sir Bobby Robson and Jose Mourinho, could end the year with four trophies - the third of which will come if Porto beat neighbours Braga in the Europa League final at the Aviva Stadium.