The veteran Blues ace looks unlikely to have a future at Stamford Bridge beyond the end of the season after falling down the pecking order since Jose Mourinho’s arrival last year.
As a result Chelsea are already lining up alternatives, with Bernat a top target.
The 21-year-old has been in excellent form for Valencia this term, establishing himself as a key first-team player since being converted from a wide attacking forward to a left-back.
His mix of skill and pace have seen comparisons with Spain star Jordi Alba drawn, and even led to possible talk of a future call into La Roja’s squad.
Manchester United have also been linked with the youngster, but Mourinho is confident that the appeal of life in West London will be enough to tilt the scales in his favour if he elects to move.
Luke Shaw of Southampton is rumoured to be Chelsea’s top target, but with the England newbie values at around £30m a deal may be difficult to strike.
Bernat on the other hand is valued at a fraction of that price, with a fee of £5m understood to be enough to lure him away from the Mestalla.