Barcelona captain Carles Puyol expects his side to come back strongly against AC Milan in the Champions League last-16 second leg on Tuesday.

The Catalans suffered a 2-0 defeat in the first leg but the 34-year-old Puyol believes he and his colleagues can do the business at the Nou Camp.

"We have the recipe to come back and win," he revealed. "The team has come through some tough tests, not just in a footballing sense."

Puyol brushed off criticism over a perceived lack of unity in the dressing room, stating that the squad are as focused and professional as ever.

"People invent possible reasons for the defeats, but the dressing room is united. If they saw how we train, they wouldn't doubt us."

Meanwhile, AC Milan manager Massimiliano Allegri reckons that that luck will play a part when his side travel to Spain.

"We know that we'll be facing the strongest team in the world even if we have already scored two goals against them," he said.

"This is Champions League last 16. If we're lucky and we manage to have an even better performance compared to the one at the San Siro stadium, maybe we could qualify.

"We'll see on Tuesday. We only have to wait and luckily there are only four days until the match, otherwise the wait would be too long."