Chelsea chairman Bruce Buck and managing director Marina Granovskaia are set to follow Roman Abramovich out of the club.
On Wednesday Abramovich announced he has put The Blues up for sale.
The Guardian says should a new owner purchase the club, Buck and Granovskaia would be unlikely to stay.
Buck has been a mainstay of Abramovich's reign in west London, joining The Blues as chairman in March 2004.
He was also named as one of the six trustees to oversee the running of the club when Abramovich handed over the reins last Saturday.
Buck founded Chelsea's Past Players' Trust, helping their ex-stars and staff who need medical or financial help. Away from football, he was rated one of the UK's two most high-profile lawyers by The Lawyer in 2009.
Granovskaia, hailed as the most powerful woman in football, became Abramovich's representative at the club in 2010 before joining the Chelsea board in 2013.
In 2016 the Russian-Candian was influential in brokering a £60million a year deal with Nike to manufacture Chelsea's kits until 2032 - a British record.
And in December last year Granovskaia was named as Best Club Director in European football at the Golden Boy awards.
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