Radwan and Robinson preparing for Springboks
The Autumn Nations Series game is a 5.30pm kick-off and is being shown live in the UK on Prime Video.
Robinson and Radwan have been regulars in the training groups during the November tests, but have yet to make a match-day 23 during the series.
Saturday’s game is England’s fourth and final test of the autumn, following last weekend’s draw against New Zealand.
