The Blues pair are set to spend next season on loan in England's second division next season with temporary moves away from the club
Tomas Kalas wants to return to Fulham on loan as they look close to beating Hull City to land the Czech Republic defender, while Chelsea goalkeeper Jamal Blackman is also set to join Bolton Wanderers, Goal understands.
Both players have also earned contract extensions from Chelsea and will return to the Football League to continue their development.
Kalas has travelled with Chelsea on pre-season but he is still expecting to leave, and favours the continuity of working under Slavisa Jokanovic, who got the London club into the play-offs last season.