They played it during the Cape Town Sale Sharks game I went to when I was in South Africa, and all the crowd were joining in. It was most unexpected at the time but it makes sense now. This live version from Paris is one of my favourite live performances of any song. AT may enjoy this.
They may well have been singing the South African rugby version which is based on their controversial, but very successful, Director of Rugby , Rassie Erasmus …..and as I’m sure you can guess goes “ Rassie,…Rassie, … Rassie.”