Michael Carrick says Manchester United's players were delighted to keep a cleansheet in last night's 1-0 win at Porto.
"Obviously it's a tough place to come and get a result, but we knew it was in our hands," the midfielder told MUTV. "We really fancied ourselves to come and score here, and defend right. It was a good team performance all round and we're delighted to go through.
"We started the game very well and looked good, and to get the goal was a big bonus. From then I thought we were in control. They came at us, which you'd expect, but we defended very well, even though it was still on a knife-edge.
"From going through, all of a sudden you can be going out. We were well aware of that and knew we had to defend right to the final whistle, and I thought we did that very well."