Bayern Munich striker Thomas Muller has taken a swipe at the attitude of Barcelona's players.

Muller declared Barcelona looked overly relaxed ahead of the 8-2 defeat to Bayern Munich.

The German forward felt that his side were better prepared and had more appetite ahead of the game.

"I congratulate our coach," Muller said at an event hosted by Mobelhaus Hoffner.

"Just one example: We had been warming up for ten minutes when Barcelona walked out onto the field to warm up.

"They were very relaxed. That doesn't have to mean anything.

"The match could have ended differently, but I think it turned out that we were very hungry."

Muller also gave his thoughts on the possible departure of Leo Messi.

"Messi is one of the best players on the planet, also in the last 100 years," he said.

"A change may be interesting for the world of football, except for Barcelona fans.

"Nobody is critical of this. On the contrary, I am curious to see what his new path would bring."

Muller joked about trying to get Messi to sign for the Bavarians.

"I've talked to our CFO a couple of times and I don't think we can do anything about it."