I think you mentioned the younger brother of Paul de Villiers who is now playing at 6 for the Stormers, Paul went to Oakdale and so did his younger brother Jacobus. There is some differences in the physical stats of the two brothers:
Paul - 1.81 meter - weight 98 kg
Jacobus - 1,87 meter - weight 103 kgs
That explaoms why Paul is playing at 6 where he is rated as the best openside flank in the URC tournament. Jacobus is still at Oakdale where he plays as an 8. There are some videos on Jacobus that may show wgt I thibnk thius giy is on his way to eb caome the ebs t 7 S A ev er had:- https://www.google.com/search?q=jacobus+de+villiers+rugby&rlz=1C1YTUH_enZA1068ZA1070&oq=Jacobus+&gs_lcrp=EgZjaHJvbWUqDAgCEAAYQxiABBiKBTIGCAAQRRg5MgwIARAAGEMYgAQYigUyDAgCEAAYQxiABBiKBTIGCAMQRRg7MgcIBBAAGIAEMgcIBRAuGIAEMgcIBhAuGIAEMgcIBxAAGIAEMgcICBAAGIAEMgcICRAAGIAE0gEKMjA5NjVqMGoxNagCCLACAfEFnMBMpXlOyEs&sourceid=chrome&ie=UTF-8&source=chrome.rb#fpstate=ive&vld=cid:f9a7536b,vid:amhva6806Zc,st:0,
Rumour has it that at the end of the year he is going to the Stormers,