LaLiga side Real Madrid topped the list of the most valuable soccer teams in the world for the fourth year in a row with a valuation of $6.6 billion, business magazine Forbes has said.

Real became the first soccer club to bring in a billion dollars in a single year after they posted a record $1.13 billion in revenue for the 2023-24 season, the magazine added in a report published on Friday.

The Spanish club, the second sports team in history to hit the 10-figure threshold after National Football League side Dallas Cowboys, are the first soccer team to register one billion euros in revenue in a single season, Deloitte had said earlier this year.

England's Manchester United are second in Forbes' list with a $6.6 billion valuation after generating $834 million in revenue in the 2023-24 season despite a forgettable Premier League campaign where they finished eighth.

Real's LaLiga rivals Barcelona are third, valued at $5.65 billion, while Liverpool and Manchester City are fourth and fifth.

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Forbes named six Premier League sides among the top 10 most valuable teams with Arsenal, Tottenham Hotspur and Chelsea making the list after Bayern Munich and Paris St Germain.

"Together, the 30 most valuable soccer teams are worth more than $72 billion, or an average of $2.4 billion, up 5 percent from 2024’s record $2.26 billion," Forbes said.