Real Madrid lost 4-3 to Schalke in the Champions League on Tuesday . The defeat was Madrid's first since a 2-0 win over Barcelona at Camp Nou last month.
Real Madrid lost 4-3 to Schalke in the Champions League on Tuesday . Iker Casillas came under fire after being at fault for three of the goals . Jamie Carragher believes David De Gea would be the perfect replacement . Casillas has made over 500 appearances for Real Madrid since 1999 . CLICK HERE for all the latest Real Madrid news .