Wycombe boss Ainsworth backing Sunderland's Knott for Port Vale success
Knott played for Ainsworth at Wycombe earlier this season.
Ainsworth told The Sentinel: "Billy has got things that I like in football. He's high-intensity, high-energy, likes to press and likes to tackle.
"He's also got quality on the ball and has a wand of a left foot."
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