The 19-year-old - deployed in an unfamiliar right back role - turned in a fine display against the Cottagers in the last-eight clash at St. James' Park.
Yoane Wissa gave United the lead before Saša Lukić headed in an equaliser for Marco Silva's men.
But having impressed on his first outing at full back, Miley then rose highest to nod home a stoppage time winner for Eddie Howe's side, setting up their two-legged semi-final against Manchester City.
England Under-21 international Miley has been in fine form since then, excelling in his last seven outings - the majority of which have come at full back.




