Leeds United are expected to take 1,800 supporters to Old Trafford for their fifth round FA Youth Cup tie at Manchester United on Wednesday night.
Leeds have not played at Old Trafford since their shock 1-0 FA Cup third round victory in January 2010 and the MEN understands the Championship side have been allocated nearly 2,000 tickets for the Youth Cup game. United gave Leeds the option of taking more but the club capped it at 1,800.
The travelling supporters will be housed in the usual away section at Old Trafford in what is an all-ticket match. United supporters can order tickets free of charge from the club website.
United head of first-team development Nicky Butt told the MEN: "I've been to many Leeds games from when I was younger with my uncle, my cousin and my dad and I went to Elland Road a good few times as a younger kid. I didn't need explaining what the rivalry is!
"But it's a healthy rivalry; Leeds are a great club, a massive club and I can't wait for them to get back into the Premier League, if I'm honest. Because it's part of a healthy, really good rivalry we have and our lads will know about it.
"We've had several meetings this week with the youth team coach, talking about the rivalry and history, but I think you've got to be careful about it with kids because if you go on too much about the rivalry you forget about the actual game."
United and Leeds last met in a competitive match in September 2011 in the third round of the League Cup at Elland Road, where United ran out 3-0 winners and Paul Pogba made his career debut. United thrashed Leeds 4-0 in their second pre-season tour match in July, when 55,274 were in attendance in the Optus Stadium in Perth.
Leeds have been outside the Premier League since relegation in 2004 and lost their Play-off semi-final to Derby County last year. Marcelo Bielsa's side are second and four points off leaders West Brom but have won just two of their last nine league fixtures.
United have not hosted a Youth Cup tie at Old Trafford since their 2-1 third round defeat to Southampton in December 2016. Substitute Tahith Chong scored and Angel Gomes started for the United Under-18s, who were coached by Kieran McKenna at the time.