Michael Carrick has warned Porto that Manchester United are 'even more determined' than last year to be crowned the best team in Europe.
The UEFA Champions League quarter-final tie between the sides remains delicately poised following a 2-2 draw at Old Trafford last week.
Porto will be confident of finishing the job after scoring two away goals but Carrick believes United can become the first English team to beat them in Portugal.
"We're English and European champions and we don't want to let either trophy go - we're probably even more determined than we were last year to stay on top," the midfielder said in The Sun.
"There's always a real determination for success and thankfully we've had that in recent years.
"But we want it again. We can beat anyone on our day, so we will go to Portugal with confidence and believing we can win."
Carrick is anticipating a difficult test but feels United are well equipped to progress in the competition, having overcome all sorts of different challenges in recent years.
He said: "You don't consciously draw on past experience, it just develops.
"You know what to expect in certain situations and the things you didn't do so well you try to put right this time round."