Chelsea boss Graham Potter is wary going to Brentford tomorrow night.
Potter talked up Bees manager Thomas Frank, whom he rates very highly.
"They're really good at what they do. Thomas Frank has done a fantastic job with limited resources but they make the most of what have," said Potter.
"I rate him [Frank] very highly. I have followed his career in the UK, I knew him in Sweden. I like him as a person, we have the same thoughts around the game and life in general.
"[Ivan] Toney is as dangerous as anybody in the league on his day. They have a spirit and an understanding. They're really well motivated and organised.
"Thomas knows the process, the Premier League, that some days won't go your way or if you're not quite there you can suffer. It's how you respond, they wouldn't be where they are now if they were unable to deal with that."