The 21-year-old central defender, who spent last season on loan at Dutch side Vitesse Arnhem, has made two substitute appearances for Chelsea.

Clarke-Salter previously played in the Championship while on loan at Sunderland from January to May 2018.

He was part of the England side that won the 2017 Under-20 World Cup and has three FA Youth Cup winners' medals.

Under the loan agreement, Clarke-Salter will be eligible to play for Birmingham in the FA Cup and EFL Cup as well as the league.