Swansea City's youngsters will bid to cause another FA Youth Cup shock when they face Blackburn Rovers in round five at the Swansea.com Stadium on Wednesday (19:00 GMT).
Swansea are through to the last 16 of the competition for the first time since 2015 after claiming a last-gasp, extra-time winner at Leeds United in the previous round.
Like Leeds, Blackburn are a category one academy, while Swansea only have category two status and therefore start as underdogs.
Rovers gave an indication of their quality with an 8-1 victory at Coventry City in the previous round.
Swansea also triumphed on their travels in round three, courtesy of another late winner at Hull City.
"It's been a long time since we've reached this stage as a club and it's nice for the boys to be part of that," Swansea Under-18s coach Jon Beale told the club website.
"We expect another difficult evening, like we had at Leeds. These category one teams work at such a high level and the level of competition they face every week is so high."