Chris Coleman reacts after making Chelsea defender his first Sunderland signing
Clarke-Salter joins on a loan deal until the end of the season after taking his place in Antonio Conte's squad for the FA Cup third round draw against Norwich City on Saturday.
The 20-year-old is a left-sided defender who featured prominently in England U20's World Cup win earlier this year.
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Hide AdHe is expected to go straight into Coleman's squad for the trip to Cardiff on Saturday.
Coleman said: “Jake is a hugely talented young player who has jumped at the opportunity to come to this club and show people what he can do.
“You don’t play for a club like Chelsea unless you have tremendous ability and I’m sure he will be able to demonstrate that for Sunderland.
“Jake is exactly the type of hungry young player I have spoken about and he has shown me just how keen he is to come to here and play in front of our supporters.”