David Button has revealed Brentford have extra motivation to stun Middlesbrough after their exuberant celebrations after their 2-1 win at Griffin Park on Friday night.
Fernando Amorebieta scored a late winner for Boro just as it looked as if the game would be poised at 1-1 after Andre Gray cancelled out Jelle Vossen's first-half opener.
And the Bees goalkeeper, who produced a string of fine saves over the 90 minutes, admitted their reaction has given them extra incentive.
He said: “They celebrated as if they already won. That's an extra incentive. We've got to put that to the back of our minds.
“The longer teams continue to undermine us the better. It didn't hurt us but given us a motivation for next week. We'll use that and hopefully it'll backfire on them next week.
"If they think the tie is won, we can use that like we have all season."
Brentford will not change their attacking mentality but will have to adjust to the physical nature of Middlesbrough, who picked up six yellow cards and some players, notably former Bee Adam Forshaw, can count themselves lucky they weren't sent off.
Button added: “It's only half time but it's important to go into next week knowing we're a goal behind. We know what we've got to do now in go there and win.
“I don't think it'll change our mentality. We'd have gone there for the win if we had the advantage. It makes it clear in that we've got to put on a good performance.
“It's the way they play. They're obviously quite bitty in the way they play. It's something we've got to deal with. We have to create the momentum ourselves.”