Sunday 29 May 2016 14:45, UK
As Barnsley and Millwall prepare to do battle for a place in the Championship, we bring you the ultimate guide to the Sky Bet League One play-off final, which is live on Sky Sports.
Neil Harris's Lions are looking for an instant return to the second tier after their relegation at the end of the 2014/15 season, while the Tykes - back under the arch after winning the Johnstone's Paint Trophy - have spent two terms in League One.
So how did they make it to Wembley, what are their previous experiences in the play-offs and who does Sky Sports Football League expert Ian Holloway think will have the edge on Sunday? Read on to find out...
It's been a stunning turnaround for Barnsley. They were bottom of the table in December but a resurgent run - which continued after Lee Johnson left in February for Bristol City - saw them sneak into the final play-off place on a dramatic final day, edging out Scunthorpe on goal difference.
The Tykes played Walsall in their semi-final tie and despite the Saddlers only missing out on automatic promotion by a point, Barnsley were firmly in control throughout.
They won the first leg at Oakwell 3-0 thanks to a Sam Winnall double and Jason Demetriou's own goal, before cruising at the Banks's Stadium, a 6-1 aggregate score sending them to Wembley for the second time this season.
Millwall were in the promotion mix for most of the season - finishing fourth on 81 points - and faced Bradford in their semi-final. The Lions outclassed their opponents during a 3-1 win at Valley Parade - including a stunning free-kick from Joe Martin - with a draw at The Den enough to see them into the finale.
Millwall can certainly be dubbed play-off veterans - but memories haven't always been happy. After failed attempts in 1991,1994, 2000, 2004 and 2009, they finally made the breakthrough in the 2009/10 season.
The Lions beat Swindon 1-0 in the League One play-off final to return to the Championship after a four year absence, with current boss Harris playing the full 90 minutes.
Barnsley's modern-era play-off appearances have yielded one win and one defeat.
They lost to Ipswich Town in the 1999/00 Division One final - the last to played at the old Wembley - but triumphed in 2005/06 when they beat Swansea 4-3 on penalties (2-2 AET) at the Millennium Stadium - one of which was taken by current caretaker manager Paul Heckingbottom - as they sealed a return to the Championship.
The Tykes have also already tasted Wembley success this term, winning the Johnstone's Paint Trophy after beating Oxford 3-2 in April.
It's Barnsley who hold the advantage in terms of meetings between the sides this season, winning both games including a 3-2 thriller at The Den in August before a 2-1 victory on home turf in January, the in-form Winnall netting in both fixtures.
The Tykes also edge the overall history, with 22 wins from 54 matches, compared to the Lions' 20.
The two bosses have both been promoted as players with the teams they currently manage - Heckingbottom through the play-offs and Harris once automatically and once after a play-off.
Harris is relishing the chance to repeat his 2010 Wembley success with Millwall.
"It will be privilege and an honour to represent the club as manager at Wembley, but the biggest privilege is to manage the players," he said. "I made a promise to my dressing room at the start of the season that if tactically, technically and attitude-wise they followed my lead, I'd make them a good Millwall team. I'm pleased I've delivered that promise."
Heckingbottom believes the Tykes have an advantage after their Wembley visit previously this season.
"I do think having been there once already will help, especially as it was in the not too distant past. We know what the venue is like and what to expect. We will be more than ready for it. Definitely," Heckingbottom told the Yorkshire Post.
"The lads were a bit more subdued this time [about reaching Wembley], maybe because we have been there once already this season. But that is good because it shows we still have a job to do. Our focus has to shift to the next game and our preparations began straight away."
Barnsley are set to have a full squad to chose from at Wembley, with Heckingbottom confirming that the likes of Marley Watkins, Aidy White, James Bree and George Smith are all back in training.
Millwall defender Byron Webster (hamstring) faces a race against time to be fit for Sunday after limping off against Bradford in the semi-final second leg last Friday.
Harris said: "Byron came off with a strained hamstring, so it's not ideal preparation because he has been colossal for us in recent weeks and months.
"It's going to be tough for him for Sunday and we'll give him every opportunity to make it. But if not, then in Tony Craig, our club captain, and Sid Nelson, who has played really well this year, I've got players who can step into the position admirably."
Millwall - Lee Gregory
"To go from non-league to being a potential match-winner at Wembley is what it's all about. This lad is a natural born goalscorer and I think his finishing ability could be the difference between the teams."
Barnsley - Sam Winnall
"I've been a big admirer of his work for a while now. He's a natural goalscorer who will find the net wherever he goes - I fancy Millwall to win but only if they keep Winnall quiet."
Barnsley have reached two previous play-off finals, losing in 2000 against Ipswich in the second tier but beating Swansea on penalties in League One in 2006 after a 2-2 draw.
The Lions have reached two previous play-off finals, both in League One - they lost 3-2 to Scunthorpe in 2009 before defeating Swindon 1-0 a year later.
Millwall have lost in three of their four visits to Wembley, most recently playing there in April 2013 in the FA Cup semi-final against Wigan, where they lost 2-0.
Gregory has scored in each of his last three games (three goals), with the last two goals assisted by strike partner Morison.
Barnsley have won five of their last six contests against Millwall (L1), including the last three in a row.
Winnall has scored four goals in his last three appearances for Barnsley.
Barnsley are Sky Bet's 13/8 favourites for the victory on Sunday, with Millwall 9/5 to win within 90 minutes while a draw and extra time is priced at 21/10. Either side to produce a winner in additional time is a 6/1 chance while a penalty shoot-out is 15/4 with the Football League sponsor.
Winnall heads the first goalscorer betting at 4/1 while Gregory is considered the Lions' main threat at 9/2 to net first.
"Picking a winner here is tough. Barnsley are the most successful team this calendar year in the country while Millwall are building something special with a team that all are pulling in the same direction.
"Millwall have got one of their own in charge and a few of their own on the pitch. That makes a huge difference when you're looking for that extra bit of edge in a final."
OLLIE PREDICTS: 2-1 to Millwall (Sky Bet odds 7/1)
Watch the League One play-off final on Sky Sports 1 HD from 2pm on Sunday, May 29 - or follow with our live blog on skysports.com and the Sky Sports apps.
