The two sides meet in the Championship on Saturday.
Steve Evans believes that Leeds will need to match Rotherham's desire to work hard if they hope to secure a victory when the two sides meet at the New York Stadium on Saturday, the Yorkshire Evening Post reports.
The Millers enjoyed an excellent run of form before the international break as they won four and drew one of their last five games to move out of the relegation zone. And while Evans - who managed the side for over three years before leaving earlier this season - admitted that they will be very difficult to beat this weekend, he suggested that his knowledge of the team will help the Whites' cause.
"Rotherham are my old club, I signed a lot of the players down there and they're in very good form at the minute - as good as most clubs in the league. I know what they're good at and what they're not so good at and one thing they do very well is work hard. That's the first thing we have to match," he told the Yorkshire Evening Post.
Since taking over, former Leeds boss Neil Warnock appears to have instilled a belief and confidence in the Rotherham side that has inspired them to put up a brave fight against relegation.
And given the way that things did not work out for him at Elland Road, it is likely that Warnock will have no problem finding the motivation to inspire his players to put in another display like the performances the fans were treated to before the break.
However, Evans should also have little problem getting his players to make sure they give everything to secure the three points.
Rotherham came out on top when the two teams met in the league earlier in the campaign, and while the Whites should have enough daylight between themselves and the bottom three for relegation to not be a concern, a defeat on Saturday may just leave them looking over their shoulder that little bit more.
And if Evans reminds his side of the threat Rotherham pose, they should have no issue matching the Millers for the amount of work-rate that the Leeds boss believes will be key to winning the game.