Benoit Assou-Ekotto has warned Tottenham not to rest on their laurels after beating AC Milan away from home in the first leg of their UEFA Champions League tie.
Spurs moved a step closer to the quarter-finals on Tuesday night as Peter Crouch's late strike gave them a 1-0 advantage to protect at White Hart Lane in the return match next month.
It was an impressive performance from Harry Redknapp's men against one of the biggest sides in Europe and Assou-Ekotto has demanded a similarly clinical approach in the second leg.
"I am very happy with how we played," the Cameroon international said.
"Milan are a very good team who are doing very well in the Italian league but we came here and were very professional.
"It is not over yet as a team of Milan's calibre have many match-winners in their ranks.
"We will have to be very professional like tonight to progress. It will be hard but we have the belief we can do it."
Assou-Ekotto also had words of praise for Crouch, who posed problems for Milan's defence all night and took his goal well after a blistering break by Aaron Lennon.
"Peter Crouch is a very good striker, he can handle the big occasion and scoring in a top Champions League game will be a good thing for him and also for the team," he added.
William Gallas, meanwhile, has admitted he did find it difficult to adjust to playing at right-back in the final half hour.
The Frenchman switched from his familiar central role after Vedran Corluka suffered an injury in a crunching challenge with Mathieu Flamini and had to be replaced by Jonathan Woodgate.
Gallas insists he was happy to play out of position for the good of the team, but confessed to Canal+: "It was not that easy because I lost my bearings.
"But I had to do it. The coach needed someone and it was logical to be me."
Gallas also paid tribute to the team's overall display and the different attacking dimensions provided by the speedy Lennon and tall Crouch.
"We expected to suffer, but we showed we are a solid team, and we played perfectly on the counter-attack," he said.
"A lot of people are surprised with us, we can play good football, and with Crouch and Lennon we have a lot of different attacking options."