Brentford boss Thomas Frank accepts they face a huge task against Manchester City today.
Frank is unsure if Erling Haaland will be fit for City in time.
"He is a goal machine who will break records in the future. He has already done it and he will continue to do it," said the Dane.
"He plays for a team that probably gives him the best chances to score goals. They give him good chances with crosses and passes.
"It's about trying to stop the source of the deliveries. It is not the first time that someone has tried to keep Kevin De Bruyne quiet, but he always seems to find a solution anyway."