Tomas Kalas is set to leave Chelsea and sign for Bristol City on a permanent deal.
The Czech Republic defender, 26, spent last season on loan with the Robins, who are ready to break their transfer record in order to sign him.
He is expected to move to Ashton Gate for around £8m, bringing an end to a Chelsea career which initially looked full of promise.
Signed in 2011, he made his Premier League debut for the Blues at Liverpool in April 2014 and impressed hugely.
However, he was unable to establish himself as a first-team player at Chelsea and moves on after several loan spells away from the club.
He spent the season before last on loan at Fulham, playing a key role as they won promotion to the Premier League via the play-offs.
Bristol City recently signed Jay Dasilva on a permanent basis after the England Under-21 left-back also impressed while on loan with them from Chelsea.