Chelsea’s need for more investment was underlined here as they were Mullered by Bayern Munich.
The Premier League champions were 2-0 down within 11 minutes through goals from right-back Rafinha and Germany striker Thomas Muller.
World Cup winner Muller then hit a sensational, 35-yard strike to make it 3-0 after 27 minutes.
Marcos Alonso hit a consolation in first-half injury time when he smashed Victor Moses’ ball across the box into the net on the stroke of half time. Michy Batshuayi added a second with five minutes to go from close range.
But, prompted by man of the match Franck Ribery, Carlo Ancelotti’s Bundesliga title holders were a class apart at the Sportshub stadium.
Antonio Conte called for the Chelsea board to make more signings last weekend despite the arrivals of Alvaro Morata from Real Madrid, Tiemoue Bakayoko from Monaco and Antonio Rudiger from Roma.
The club are currently trying to sign Juventus left-back Alex Sandro, Inter Milan winger Antonio Candreva, another centre-half and Swansea striker Fernando Llorente.
Chelsea were also boosted by appearance of £58million Morata in the 63rd minute.