The Preparation Series was a South African rugby union tournament organised by SA Rugby. The tournament was used to be a number of preparation fixtures were announced by SA Rugby. It served as preparation for the 2021 British & Irish Lions tour to South Africa and South African teams entering the Pro14 Rainbow Cup, who had missed out on significant rugby game time due to the COVID-19 pandemic. 8 sides took part in the competition; the four joining the Pro14 Rainbow Cup, along with the Cheetahs, Griquas and Pumas, who had taken part in Super Rugby Unlocked and the 2020–21 Currie Cup Premier Division, and the Eastern Province Elephants who had not played any competitive rugby since the 2019 Currie Cup First Division.