Spanish league champion FC Barcelona has topped the Deloitte Football Money League for the 2018-19 season, with total revenues of €840.8m (£741.1m/$935.9m), becoming the third team ever to top the rankings and the first to break the €800m mark.
La Liga leaders Barcelona have chalked up a victory over rivals Real Madrid after establishing a record gap between first and second place in the latest Deloitte Football Money League.
Sam Boor, senior manager in the Sports Business Group at Deloitte, added: "The impact of participation and performance in UEFA club competitions on revenue is evident in London and the North West, with the rise of Liverpool, Manchester City and Spurs driven by reaching the Champions League knockout stages".
The top-20 clubs reported a combined $10.3 billion of income for the 2018-19 season.
Barcelona's jump in revenue can be attributed to worldwide overhauled operations further approving a change in strategy related to increasing merchandising and licensing in-house activities.
"The club's commercial operation generated 383.5m euros (£326.6m) of revenue, which is more than the total revenue of the 12th-placed club in this year's Money League".
United's place as number one English club - a position they have held since the first Money League survey in 1996-97 - is in peril because they are forecasting reduced revenues of between £560-580 million for 2019-20, partly because they failed to qualify for this season's Champions League.
Their closest Premier League rivals are City and Liverpool in sixth and seventh respectively, with City just £88.9m behind.
An indication of how much ground Abu Dhabi-backed City have made up is that they were €200 million adrift of United 10 years ago.
"What is notable is the apparent continuing emergence of 'mini-leagues within the Money League", as the largest revenue-generating clubs continue to pull away from the rest'.
"That will certainly cover this period when Liverpool are having a significant period on the pitch, so we assume there's an opportunity of United shedding that top placement".
The composition of the top 20 overall remains relatively stable with only two new entrants to the Money League - Olympique Lyonnais ranked 17th (up from 28th) and Napoli ranked 20th (up from 21st).
This is due to the fact that the English club's projected revenue for the 2019/20 season is set to drop to €660m partly as a effect of the Old Trafford side's failure to qualify for this season's UEFA Champions League tournament. We hope that we have succeeded by giving you the full details and information.