Liverpool legend Jamie Carragher has confessed he has a 'nagging fear' over how long the Reds can continue their successful run once Jurgen Klopp and sporting director Michael Edwards leave the club.
Carragher claimed there is no other manager that could have achieved the success the German has since his arrival at Anfield.
The pundit hailed Liverpool as one of the best-run clubs in world football under FSG's management but believed the biggest influence on the Reds was the manager.
Jamie Carragher (right) says he has a 'nagging fear' for Liverpool if Jurgen Klopp (left) leaves
The 54-year-old's contract with the club is set to expire in 2024 and he revealed last year that he intends to take a year's sabbatical when his tenure at Liverpool comes to an end, with retirement even a possibility.
Meanwhile, in a blow to Liverpool, Edwards looks set to leave the club as his deal will run down at the end of the season, and it is reported that he has already informed Anfield chiefs about his decision to step down after several glittering years.
Former Red Carragher revealed he now fears that Klopp, along with Edwards, are irreplaceable.
Liverpool sporting director Michael Edwards (left, pictured with manager Jurgen Klopp and owners FSG's president Mike Gordon) will reportedly leave the club next summer
'Over the past six years, Liverpool have been among the best-run clubs in world football,' said Carragher in the Telegraph.
'But I have a nagging fear. How long can they keep beating the system to challenge for the Premier League and Champions League?
'With sporting director Michael Edwards delaying extending his contract beyond this season, and Klopp unlikely to stay beyond 2024, many supporters are wondering if Liverpool’s success is despite their business model rather than because of it; the product of amazing individuals rather than an amazing plan.
'My belief is that the single biggest influence on Liverpool’s success since 2015 is Klopp.
The former Red believes he single biggest influence on Liverpool’s success since 2015 is Klopp
'There is excellence around him and naturally the principal owner, John W. Henry, assumes credit for appointing great people to execute his plan, but there is no other manager who could have done