James Meredith reckons Millwall have different attributes to many of their Championship competitors.
The Lions will look to build on Saturday’s 0-0 draw at Cardiff City when they head tonight to Sheffield Wednesday, who reached the play-offs last season.
Meredith said: “There are a lot of great teams in this division who play nice football – but they haven’t got the heart and togetherness. That’s certainly one thing that’s built into Millwall and our culture.
“We look after each other. It’s a tight-knit group and we work hard.
“Cardiff is a tough place to come and we’re happy with a point. Their wingers are dangerous and very active. They can turn you inside out.
“The team is coming together really well and we’ve got some good players. I think we’ll kick on.”
Cardiff boss Neil Warnock admitted his side had been denied by the Lions defensive resilience.
“It was frustrating,” he said. “You can’t blame Millwall, they’ve got a genuine bunch of lads and a good manager. They came to shut the shop up or park the bus if you like.
“Millwall know what their strengths are and their strength is coming away with a 0-0 draw. It was the kind of game I expected.”
Harris is expecting to have the same squad available for the Lions trip to Hillsborough.
“We’ve got the normal knocks and niggles,” he said.
“Going into a Tuesday night game there will be one or two late decisions. You always get impact ones – dead legs and tight calves. Hopefully it will be the same 20 as Saturday travelling.”