Required fitness level: Fullbacks must be able to make 1.65 sec in the 10 metres, 5.10 seconds in the 40 metres, 130 kg in the bench press, 160 kg in the squat and a vertical jump of 68 cm. They should have no more than 9% body fat.

Injuries to watch out for: Players at fullback are vulnerable to leg injuries as a result of running, swerving and side-stepping at speed, particularly torn tendons and ligaments of the ankle and knee. Injuries from being tackled hard at speed include fractures and sometimes concussion. Neck, shoulder, back and trunk injuries may also occur.