Wales have recalled tough-tackling flanker Dan Lydiate for their World Cup quarter-final against South Africa at Twickenham on Saturday.
Lydiate slots into the back-row in place of the benched Justin Tipuric, with captain Sam Warburton moving across from blindside to openside flanker.
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He was one of three changes announced by coach Warren Gatland on Thursday to the team that started the 15-6 defeat by Australia in last weekend's Pool A decider at Twickenham.
Tyler Morgan comes at centre to partner Jamies Roberts in midfield as George North returns to the wing — Liam Williams having been ruled out of the tournament because of injury — while prop Gethin Jenkins starts in place of Paul James.
"After coming through an incredibly tough Pool, we are excited to be in the quarter-finals and returning to Twickenham," said Gatland, who four years ago guided the Welsh to a World Cup semi-final in his native New Zealand.
"The physicality and intensity of the matches so far will stand us in good stead for what is going to be a huge battle against the Springboks."
Wales make three changes for @rugbyworldcup QF against @Springboks #RWC2015 pic.twitter.com/tE2hRSRRIj
— Welsh Rugby Union (@WelshRugbyUnion) October 15, 2015
South Africa started this World Cup with a shock 34-32 loss to Japan but then won their next three matches to top Pool B
"They have grown game on game in this tournament and we know the challenge that faces us from a talented South African side," Gatland added.
Wales (15-1)
Gareth Anscombe; Alex Cuthbert, Tyler Morgan, Jamie Roberts, George North; Dan Biggar, Gareth Davies; Taulupe Faletau, Sam Warburton (capt), Dan Lydiate; Alun Wyn Jones, Luke Charteris; Samson Lee, Scott Baldwin, Gethin Jenkins
Replacements: Ken Owens, Paul James, Tomas Francis, Bradley Davies, Justin Tipuric, Lloyd Williams, Rhys Priestland, James Hook.