Robert Lewandowski scored twice as Bayern Munich maintained their 100 per cent start in the Champions League with a rollicking 6-2 win at Salzburg despite a scare on Tuesday.

The holders eased to victory over Atletico Madrid in their opening game and then saw off Lokomotiv Moscow but looked as though they might come unstuck in Austria when Masaya Okugawa levelled matters at 2-2 in the 66th minute - just 54 seconds after he was introduced as a substitute.