NEIL Harris doesn't expect Brentford to adopt the same approach as Sunderland last week and sit off his side when the London clubs clash on Saturday.
The Lions haven't lost at The Den since November, but went down 1-0 to the Bees earlier this season after Lee Gregory had a goal ruled out and then missed a penalty.
Dean Smith's Brentford play a possession-based game, which could suit Millwall who will sit deep and look to hurt their opponents on the counter-attack.
Sunderland sat back and allowed Millwall have the ball for long spells, and eventually paid the price when Shaun Hutchinson grabbed an equaliser for a 1-1 draw.
Harris felt a "rubbish decision" from the referee – when he whistled for a penalty just as Gregory was firing the ball home – cost his side at Griffin Park.
But he was impressed with how his players performed against an established Championship club who have gone close to the play-offs in recent years.
Harris is expecting a "cracking game" this weekend and believes that Brentford will come to attack his side.
He said: "Teams very rarely sit off us and allow us have the ball. We're very dangerous and Sunderland found that out and just about escaped with a point.
"I don't expect Brentford to do that to us. They will always try to win the game because that's the way Dean sets them up.
"They are a really good football team, great to watch. That's going to be one hell of a game, a London derby. The frustration after the first game was with the referee's rubbish decision. That was during a little spell when we had a lot of decisions go against us, as I felt we had last Saturday as well.
"Against Brentford earlier in the season it was a game of two halves. They dominated possession before the break but second half we were excellent and should have at least drawn the game if not got the win. They threw their bodies on the line at the end of the game, and we had that disallowed goal and a missed penalty.
"It was a cracking game and it will be the same Saturday."
Aiden O'Brien returned to full training late this week and has an outside chance of being involved.
Only Byron Webster remains an injury absentee for the Lions.
Millwall record against Brentford
Won 20 Draw 21 Lost 23
Probable Millwall team
4-4-2: Archer; Romeo, Hutchinson, Cooper, Meredith; Wallace, Williams, Saville, Marshall; Gregory, Morison.
Millwall 21/10 Draw 5/2 Brentford 2/1
- Millwall met Brentford in Neil Harris' third game in charge, a 2-2 draw at Griffin Park on March 21, 2015 when Lee Gregory and Aiden O'Brien were on target before the Bees scored twice in the last five minutes
- Brentford are unbeaten in five games against Millwall, since a 4-1 away win for the Lions in December 2006
- Lee Gregory made his 150th Football League appearance against Hull on Tuesday night
- Jake Cooper scored on his 50th league appearance for the Lions
- Millwall have the (joint) second best defensive record outside the top six – with only Preston conceding fewer
Image: Millwall FC