 Complete the following phrase:  During the early races of the 1970 Formula One season Ferrari only entered one car, for Belgian Jacky Ickx, but at the fourth round in Belgium, the team decided to run a second car to try out some younger drivers. Italian Ignazio Giunti was given the second seat in Belgium, where he finished fourth, while Regazzoni took his place at the following round in the Netherlands, also finishing fourth. Giunti was back in the seat for the following Grand Prix in 