34-year-old Ivica Olic got Croatia off the a great start against Cameroon, hitting the back of the net after just 11 minutes.
Five minutes before half time, Alex Song was sent off for a brainless dig into Mario Mandzukic's back.
Early in the second half, Ivan Perisic tore down the left wing and slotted the ball past Charles Itandje to make it 2-0 to Croatia.
A simple header for Mario Mandzukic about 60 minutes gave Croatia a 3-0 lead.
4-0, Mandzukic again. Just too easy.