These two meet in the play-offs having shared the spoils across the season with each recording 3-1 away wins.
Hull City secured their play-off place on the final day of the season by coming from behind to beat Norwich City while Millwall confirmed third spot with a 2-0 victory over Oxford United.
The first leg of this tie is on Friday (20:00 BST) with the return in south London Monday, 11 May (20:00 BST).
- Hull have lost just one of their past five home games against Millwall (W3 D1), though it was a 3-1 defeat in March in this season’s Championship campaign.
- Following that victory in March, Millwall are looking to win consecutive meetings with Hull in all competitions for the first time since April 2011.
- This is Hull’s third appearance in the Championship play-offs, winning promotion to the Premier League on both previous occasions (2007-08 and 2015-16). However, the team finishing sixth has not won the Championship play-offs since 2009-10 (Blackpool).
- Millwall have reached the final in each of their past four Football League play-off appearances, with all of these coming in League One (2008-09, 2009-10, 2015-16, 2016-17). However, they have gone out in the semi-finals in all three of their second tier play-off campaigns (1990-91, 1993-94, 2001-02).
- Hull have won the first leg of their semi-final tie in all three of their previous appearances in the Football League play-offs, keeping a clean sheet each time.
- Millwall have not lost the first leg in any of their last six play-off semi-final ties (W2 D4), since a 2-0 loss at Derby in 1993-94.