Speaking ahead of Thursday's fixture, Sousa said: "I certainly feel and I believe a lot of us also think that Spurs are one of the very best teams in Europe at the moment.
"That's from a technical, tactical, mentality and physical point of view. They're a young team, and they're a very hungry team and every time they go out they want to try to impose themselves.
"We need to play with a high level of physical and mental intensity and we need to play our game.
"Certainly in the first leg - despite the fact that Spurs are the team that come from this background and culture of being intense, being very strong and being physical - we more than held our own and created problems for them by the way we kept>