Southampton promoted to the Premier League after beating Leeds at Wembley - with Saints netting £180MILLION payday in football's most valuable game

Southampton have been promoted to the Premier League after beating Leeds United 1-0 in the Championship play-off final - football's most lucrative fixture.

Adam Armstrong's first-half strike secured a tense 1-0 victory for Saints at Wembley and crucially earned them an unparalleled £180million payday.

The striker timed his run to perfection to meet Will Smallbone's threaded pass and tucked his 24th - and most important - goal of the season into the far corner.

Leeds pushed for an equaliser after the interval but Crysencio Summerville and Willy Gnonto squandered golden opportunities to salvage their top-flight dream.

Substitute Daniel James then clattered a powerful effort off the crossbar seven minutes from time and saw a later effort saved as the Whites piled on the pressure. 

But the final whistle sounded shortly after, securing Russell Martin's Saints a spot at the top of the English football pyramid after just one season in the second tier. 

Leeds' play-off heartache condemned them to a sixth failed attempt to earn promotion the long way round and a second straight season in the Championship. 

The money at stake would only have heightened their agony.

According to Deloitte, the £180m figure takes into account the projected increases in matchday, broadcast and commercial revenue in the Premier League.

The sports business group has also predicted that this windfall could rise to more than £300m if Saints survive in their first season back in the top-flight. 

'I don't know what to say. It's what we've been working for all year, we know how good the Championship has been this year,' Armstrong told Sky Sports.

'What a way to go up! I saw the space in behind [for the goal] and I knew if I put it across goal it was going to go in, so it was a nice one.

'It means everything. The gaffer and his staff came in in pre-season and put a marker down of what they wanted to see, and look at this. 

'This is why we're footballers, we want to be involved in the biggest games.'

Only 12 months ago, Southampton, owned by Serbian media mogul Dragan Solak, had finished bottom of the Premier League, 11 points adrift of safety. 

Leeds had also tumbled into the Championship after finishing 19th. 

Both clubs were forced to settle for the play-offs this season, however, despite them striving for the automatic spots. Leeds finished third ahead of fourth-placed Saints.

Saints saw off West Bromwich Albion in their two-legged semi-final tie while Leeds eased to a 4-0 aggregate victory over Norwich City after an emphatic home win.

Whites boss Daniel Farke rolled the dice at Wembley as his side chased a late leveller but Saints goalkeeper Alex McCarthy, James' strike aside, was rarely tested.