The Glazer family could seek to sell Manchester United after seeing £600m wiped off their value.

New data shows that United's shares have fallen by 23% this year - the biggest collapse since the club joined the New York Stock Exchange back in 2012 - and a finance expert says he thinks the Glazers could be "tempted to cash out" if the trend continues.

With Chelsea's impending £4.25 billion takeover setting a de facto market price for major European football clubs, there's belief within United that they could fetch a similar sum, despite the club's value being lower than Chelsea's.

"Manchester United's share price has fallen considerably throughout the season, plummeting 23% in total - wiping $720million (£572m) in value off their market cap," Saxo Markets sales trader Mike Owens said.

"United's falling share price may make the club a more attractive proposition for a potential new buyer and this could be the catalyst to see a change of ownership at the club in the next couple of years if current owners, the Glazer family, are tempted to cash out,"