Daniel Agger has warned that Liverpool must keep their feet on the ground following their stunning 2-1 win at Camp Nou.
Rafa Benitez's men became only the second English team to beat Barcelona on home turf - following in the footsteps of an earlier Reds team in 1976 - and secured a result that gives them a great chance of making the quarter-finals of the UEFA Champions League.
However, following their poor showing on Wednesday night, Barca will be determined to make amends at Anfield on 6th March.
Now centre-back Agger has warned his team-mates they can ill afford to prepare for the second leg with generous words of praise still ringing in their ears.
"We should keep our feet on the ground," Agger told viasatsport. "Barcelona is also a very good side on the road, much can happen."
The young defender helped a resolute Reds defence prevent Barca from adding to Deco's opener, and the Danish international admits the victory was one of the highlights of his still budding career.
"First of all it was a football match, but of course it was a particularly nice one, especially since we won," Agger continued.
"The atmosphere and football was one of the best I have experienced.
"It's a matter of being in the right position on the pitch and working hard for the side.
"Additionally we tried to create some good counter attacks and I feel we succeeded well."
Team-mate John Arne Riise also enjoyed a superb night to deflect focus away from a reported training camp bust-up with Craig Bellamy, and the scorer of the winning goal admitted he could not have scripted the night any better himself.
"To win at Camp Nou and score the winner, it can't get much better," Riise told TV3.
"We did what we came for. We worked very hard for each other and our team spirit was fantastic."