The Knicks have lost point-guard prospect Chasson Randle, who was playing on their D-League team in Westchester, to the 76ers.

As first reported by The Post, Randle staged a workout in Philly on Sunday, and he has agreed to terms on a 10-day contract that he will sign Tuesday, according to an NBA source. Randle could be in uniform when the Knicks visit the Wells Fargo Center on Wednesday for their first game against the Sixers.

Randle averaged 20.7 points and shot 40.2 percent from the 3-point stripe in Westchester. The Stanford product was sensational in summer league then was cut in training camp after suffering a fractured orbital bone. He agreed to play in Westchester with the idea he could get called up in January if the Knicks opened a roster spot by declining to guarantee combo guard Ron Baker’s contract. Randle was attractive because he played the triangle offense at Stanford before going undrafted in 2015 and playing one season in the Czech Republic.