The goalkeeper kept a clean sheet in his first appearance for his new club

Iker Casillas made his Porto debut in a 2-0 pre-season win over German second-tier side Duisburg on Saturday. The Spain goalkeeper joined Porto on a free transfer a week ago after being allowed to end his 25-year association with Real Madrid. Casillas, 34, slotted straight into Julen Lopetegui's starting XI, with Ivan Marcano, Jose Angel, Cristian Tello and fellow newcomer Alberto Bueno also present. The veteran goalkeeper's first touch saw him pick the ball out of his own net, but luckily for him the goal was disallowed for offside. Casillas was replaced by Helton at half-time, with Yacine Brahimi and Hernani finding the back of the net to give Porto a comfortable win.