Barcelona coach Tito Vilanova has paid tribute to tonight's opponents Atletico Madrid.
It's first versus second later today in Spain.
Vilanova said: "Their points total says it all.
"We've made the best ever start to a league season and they're only 6 points behind. In any other league they would be the leaders. They're making a great start to the season and they finished in excellent form last season. Putting the two runs together is spectacular."