Barcelona must "play to our tempo" against AC Milan or risk a round of 16 exit from the Champions League, according to Brazil defender Daniel Alves.
The La Liga leaders will on Today attempt to overturn a 2-0 first-leg deficit at Camp Nou to avoid missing out on the quarter-finals of Europe's premier club competition for the first time since 2006/07. Barcelona can be backed at 1.33 in the 90 minutes market and 2.30 to qualify.
Defeat in Italy, followed by back-to-back losses by bitter rivals Real Madrid in the Copa del Rey and La Liga, has led to suggestions the Catalans are suffering from a dip in confidence in the absence of first-team coach Tito Vilanova.
Alves says it is imperative the Blaugrana start on the front-foot against the Rossoneri and insists the four-time European champions will not throw in the towel.
"If we play at our level, we will have a lot of chances," said the right-back. "We have spectacular players, so I don't think this tie will be decided until the referee blows the final whistle."
He added: "The desire to enjoy this is very great, and great challenges are there for great teams. Let's see where we stand at the end – if we really are the team that's respected all over the world, or if we cannot reach that level. We're very confident in our team and the players we have."
Xavi Hernandez has been nursing a right hamstring injury since the first leg and remains a doubt for assistant coach Jordi Roura.
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