Brentford boss Thomas Frank expects a massive test on Sunday facing Liverpool at Anfield.
Frank insists the Reds' defeat at Europa League opponents Toulouse won't be a factor.
He said, "They have brought new energy into the team with their signings.
"They are an incredible team at Anfield, which is one of the most difficult away grounds to play at.
"As always, we believe in ourselves, but we know it will be very difficult (to get a result)."