Berlin: Arjen Robben says Bayern Munich still have room for improvement and must keep their feet on the ground despite routing Roma in the Champions League`s group stages.
The Netherlands winger scored twice in Tuesday`s romp at Rome`s Olympic Stadium as Bayern raced into a 5-0 half-time lead and the hosts suffered their heaviest defeat in Europe -- matched only by their 7-1 drubbing at Manchester United in 2007.
With the return leg in Munich in a fortnight`s time, Bayern are now in pole-position to reach the knock-out stages after three wins from three Group E games, but Robben said the Bundesliga leaders must not get carried away.
"It was crazy to be 5-0 up at half-time in Rome," admitted Robben.
"We have to enjoy the moment, but we must also keep our feet on the ground.
"It`s still early in the season and although this may sound stupid, there are still things we can improve on."
Having had an audience with Pope Francis at the Vatican on Wednesday before flying back to Munich, Pep Guardiola will get his squad back to Bundesliga business as they travel to face Borussia Moenchengladbach on Sunday in a top of the table clash.
Germany forward Thomas Mueller said Guardiola had detailed Roma`s weaknesses before kick-off which had allowed the Bavarian giants to set a new away record in Europe.
"We were well set up by the coach, he had pin-pointed where the weak points in the Roma side were and they were exactly where he said they would be," said Mueller.
"We knew exactly what we had to do and we have the individual class to make it happen."