Wales must be ready for ‘battle royale’ with South Africa, says Shaun Edwards

• Defence coach wary of Springboks ‘blowtorch speed’ out wide• Wales aiming to reach their first Rugby World Cup finalWales back themselves physically against anyone and if they justify that confidence against South Africa on Sunday they will very probably reach the final for the first time. The Springboks have beaten them in the past two World Cup tournaments in tight, hard‑fought contests, but a motivating end of an era beckons with Warren Gatland nearing his final week in charge of the Six Nations champions.Gatland’s side were knocked out of the 2015 World Cup by South Africa, succumbing to…