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

It was Hamburg's heaviest Bundesliga defeat while Bayern enjoyed its 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.