Sankoh, 19, features in Stoke's Under 23s, and will spend the next month at the Grove on a youth loan.
He will help fill the void left by the suspension of Kingsley Adu-Gyamfi and the injury of Ruben Wiggins-Thomas
Manager Ryan Austin said: “We’re delighted to get him on board.
“He’s an exciting talent who will be a great addition to our squad.”
Kidsgrove face Gainsborough Trinity tomorrow night in the Integro Cup third round.
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