Kepa Arrizabalaga is reportedly fearful that Chelsea will price him out of a summer exit.
The Spaniard became the world's most expensive goalkeeper when he joined the Blues from Athletic Bilbao in August 2018, but he has largely failed to make his mark at Stamford Bridge.
Kepa was left out of four of Chelsea's five Premier League games before the division was postponed in March, while he has only kept six clean sheets in 25 league outings this term.
Valencia are among the clubs thought to be interested in signing the Spain international this summer.
However, according to The Sun, Kepa fears that Frank Lampard's side will make it impossible for clubs to sign him ahead of the 2020-21 campaign.
Chelsea are allegedly already putting plans together to replace the 25-year-old as they weigh up a £15m move for Borussia Dortmund's Roman Burki, who is out of contract next summer.