Liam Williams, normally a wing with Heineken Champions Cup Pool 3 leaders Saracens, has been selected at full-back for Wales on Saturday, when they host South Africa at Cardiff’s Principality Stadium. Williams, who marked his 50th Test cap last weekend with two tries in the 74-24 home victory against Tonga, is chosen in his British and Irish Lions position instead of Leigh Halfpenny, after the Scarlets full-back was ruled out with concussion. Williams’ selection is the only change to the Wales side who beat Australia 9-6 on November 10 as head coach Warren Gatland makes multiple alterations to the team who swamped Tonga. https://twitter.com/Saracens/status/1065614734291025920 Scarlets’ Hadleigh Parkes and Jonathan Davies resume their midfield partnership on the Test stage, while team-mate Gareth Davies returns at scrum-half and Cardiff Blues’ Gareth Anscombe reclaims the No.10 jersey. In the pack, Scarlets hooker Ken Owens and Exeter Chiefs prop Tomas Francis are recalled to the front row.