Harper came close to dislodging Given on numerous occasions, most notably in the 1998–99 season. Harper played in the 1999 FA Cup Final, when Newcastle lost 2–0 to Manchester United. Then-manager Ruud Gullit appeared to see Harper worthy of playing over Given. However, at the start of the 1999–2000 season, Gullit resigned and Harper again became second choice goalkeeper, although he did enjoy another brief period of first team action for part of the season when Given was injured. When Given returned from injury, Harper was once again used as the back-up goalkeeper.