Springbok scrum-half speedster Williams gets chance to impress
Speedster Williams can also operate as a winger -- a plus as head coach Rassie Erasmus favours those who can operate in more than one position.
There are five scrum-halves seeking to top the pecking order, including two-time World Cup winner Faf de Klerk.
De Klerk was omitted for an end-of-season tour to Europe last year, but the 33-year-old came off the bench in an unimpressive 42-24 win over Italy in Pretoria last Saturday.
Cobus Reinach, who will be on the bench in eastern coastal city Gqeberha...