Pep Guardiola watched his Bayern Munich side annihilate Roma 7-1 with a breathtaking display of attacking football - and then demanded they improve.
The German champions scored five first-half goals to blow away their hosts, second in Serie A.
The Italians simply had no answer to the likes of Mario Gotze, Thomas Muller, Robert Lewandowski and in particular Arjen Robben, who scored twice and gave his former Chelsea team-mate Ashley Cole a torrid time in the first half before the left-back was replaced at half-time.
"Roma always play well, but we were very aggressive, we made good decisions and we opened up the space we needed," Guardiola said on the Bayern website. "But there are still things we can do better."
Robben agreed, adding: "Huge credit to the team, and the coaching staff who set us up so well. Leading 5-0 at half-time in Rome is just incredible! It's an evening you simply have to enjoy because it was a superb performance.
"But we have to keep both feet on the ground. It's still early in the season. It may sound a little dumb, but there are still areas where we can improve."
Bayern celebrated their win with a private audience with Pope Francis at the Vatican today.
1Lionel Messi took a step closer to the Champions League scoring record against Ajax last night and now turns his target to the El Clasico with Real Madrid on Saturday and the all-time La Liga goals tally.
His partnership with Neymar is blossoming this season after a slow start and he set the Brazilian up for the first goal against Ajax before striking the other in the 3-1 win to give him 69 Champions League goals, two short of Raul's record.
In La Liga Messi has 250 goals, one short of the scoring record of Telmo Zarra for Athletic Bilbao in the 1940s and '50s, but he denies it will be on his mind against Real.