Leeds United owner Andrea Radrizzani will have to consider selling the club if they fail to win promotion to the Premier League, Sportsmail understands.

Sources say the Italian is now ‘all in’ on the gamble of securing top-flight football and an estimated £200million windfall.

Without that, we have been told that Radrizzani would find it difficult to fund another season geared towards promotion and that prized playing assets would have to be sold.

Leeds owner Andrea Radrizzani may consider selling the club if they fail to win promotion

We understand that manager Marcelo Bielsa is being paid £3.4million per year and that the total cost including his staff is £6m, with contracts running until 2020.

However, we can reveal that there are break clauses this summer and it is likely Bielsa will leave if they do not go up.

Radrizzani could also be forced to sell some or all of his 88 per cent stake. In May of last year he sold a 12 per cent stake to 49ers Enterprises - an investment entity affiliated with the NFL’s San Francisco 49ers - and it could be that they increase their share.

Radrizzani is popular around Elland Road and his running of the club alongside director of football Victor Orta and CEO Angus Kinnear has been successful. He has funded the club with major cash injections since taking over in 2017 but board members are aware that model cannot be sustained beyond this campaign.

Sportsmail understands there are break clauses this summer in Marcelo Bielsa's contract

Such financial concerns are thought to be the reason behind a club policy to postpone contract talks for key players until the summer, including fan favourite Mateusz Klich and top goalscorer Kemar Roofe. Each player will have one year left on their current terms this summer.

Bielsa, though, has done an excellent job. His team are currently third in the table, two points off top with a game in hand, and are playing a stylish, winning brand of football.

But that has come at a significant cost, with his salary said to be treble that of the next highest-paid Championship manager.

The ramifications of not going up have been made clear to those connected to the club and insiders have noted an increased anxiety to executives on matchdays.

Radrizzani pumped £14.5m of his own money into Leeds during the 2016-17 season, as revealed by accounts announced last April, and it is believed he put another £16m in for the 2017-18 campaign.

Top goalscorer Kemar Roofe (centre) will have one year left on his current deal this summer

It has been decided that level of funding cannot continue, with Radrizzani’s British sports broadcast company, Eleven Sports UK, facing an uncertain future given it is still only available on desktop, mobile, or tablet.

It was announced last week that the streaming service had lost exclusivity rights on La Liga games. ITV and Premier Sports will now screen weekly matches from the Spanish top flight.

This follows on from Radrizzani revealing to the New York Times in December that, ‘You cannot just keep losing money,’ when asked about the viability of his channel without distribution deals in place on pay-TV.

The 44-year-old confirmed he was considering closing the British arm of his business if a resolution could not be found.

Those broadcast struggles have had a trickle-down effect on the football club. It was evident in January that Leeds were reluctant to commit large fees for new signings.

Leeds are currently third in the table and are two points off top with a game in hand

Goalkeeper Kiko Casilla joined on a free, while a prospective move for Dan James fell down when Swansea chairman Huw Jenkins discovered a £1.5m loan fee would not be paid until the summer.

Jenkins pulled the plug and resigned. James, the exciting 21-year-old winger, would have joined Leeds permanently for £8.5m in the event of promotion, paid in three instalments.

Staying down means Leeds would have to raise funds through sales if new investment was not forthcoming.

Assets including Klich and Roofe, as well as Kalvin Phillips and impressive youngsters such as Jack Clarke and Bailey Peacock-Farrell could be made available.

Peacock-Farrell, the 22-year-old goalkeeper, also has one year left on his contract this summer. There have been reports that Leeds have an option to extend Klich’s deal. However, we have been told this is not the case.