Brentford boss Thomas Frank says being able to compete with Chelsea is a great moment in the club's history.
The Bees meet their near neighbours tomorrow night.
Frank said, "Last year was a special day in Brentford's history. It was a great match that I will always remember. We hope we can go and perform tomorrow and we hope we can win.
"In the matches that Frank Lampard has been in charge of, they have played with more intensity. They played a really good game against Real Madrid at home against Real Madrid.
"They are clear favourites, but we hope and believe that we can do something."