Real Madrid coach Jose Mourinho is demanding victory against Sevilla.
Mourinho's side lost 3-1 at home to Barcelona on Saturday and also gave up top spot on head-to-head results to the Nou Camp side, who have played a game more.
But Mourinho believes that game in hand, against Sevilla, could prove crucial.
Mourinho said: "If we beat Sevilla we will be leaders at Christmas."