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The 3-0 Champions League defeat to Bayern Munich on Tuesday night at Stamford Bridge revealed the gulf in quality between both sides.
One player that failed to impress against Bayern Munich was Ross Barkley.
The Englishman completed just seven passes against Bayern Munich in the 61 minutes he was on the pitch. He was then replaced by Willian, who completed more passes than Barkley despite being on the pitch for just 29 minutes.
Chelsea boss Frank Lampard revealed after the defeat to Bayern Munich that his players must learn from the experience ahead of the second leg encounter next month.
Lampard said: “They need to use it to positive effect.
“A lot of players there either haven’t played Champions League knockout football, have played Europa League which is a big difference, or have played it a few years ago and not at Chelsea when we were getting to semi-finals and finals.
“When you have an eye-opener like tonight [last night], the only answer, young or old, is to not look at any other part of the team but yourself.
“Who was I up against, who was my direct competitor? How do I feel I played against them?”