Berlin: Pep Guardiola admitted he was impressed as Bundesliga leaders Bayern Munich inflicted a record 8-0 rout on Hamburg to warm-up for facing Shakhtar Donetsk in the Champions League.

This was Hamburg’s heaviest ever Bundesliga defeat while Bayern enjoyed their biggest league win since romping to a 9-0 win over Kickers Offenbach back in 1984.

Stars Arjen Robben, Thomas Mueller and Mario Goetze all netted twice as Bayern ran riot at Munich’s Allianz Arena ahead of Tuesday’s last-16, first-leg, clash against Shakhtar in Lviv.

Despite previously insisting Bayern would have “problems defending the Bundesliga title and no chance of winning the Champions League” unless they improved on recent performances, Guardiola was happy.

“We played well. Our build-up play was quicker than last time and our usual game is back. Now we’re focused on the Champions League,” said Bayern’s Spanish coach after another record win over Hamburg.

Guardiola left defensive midfielder Xabi Alonso out of his starting line-up, but said the Spain star should be fit for Donetsk.

“Xabi Alonso had a bit of a problem with his leg and we didn’t want to take a risk,” he said.

Bayern have developed a habit of destroying Hamburg in Munich and peppered the visitors goal with 25 shots with just seven in reply.

Just over two years after their 9-2 drubbing in Munich, Hamburg were again made to suffer having also been beaten 3-1, 5-0 and 6-0 on their last four visits to the Bavarian capital.

Germany star Mueller particulary caught the eye as he converted a penalty for Bayern’s first goal before setting up three more.

“When we play like that, of course it’s fun,” said Bayern captain Bastian Schweinsteiger who reveled in his defensive midfieled role.

“We worked well, kept things simple and moved well, plus there was a lot of talking on the pitch, which makes life easier.

“Our build-up play was much better than in previous weeks and we were better going forward.”

Bayern’s Poland striker Robert Lewandowski, who scored their sixth goal, said the 2013 Champions League winners can expect a tougher time in Lviv.

“8-0 and a super performance. It’s always good for us when we can score a lot of goals,” said the striker, who has eight league goals this season and set up Franck Ribery for Bayern’s seventh.

“Of course, Tuesday will be a different game, but we are prepared. I am delighted that we played so well.”