Wales require 10-15 per cent improvement for result in South Africa – Dan Biggar

Dan Biggar will lead Wales into the second Test against South Africa (Themba Hadebe/AP)

Dan Biggar says Wales require a “10-15 per cent” improvement in their quest for a Test series-levelling victory over South Africa on Saturday.

And Wales captain Biggar also poured cold water on Sir Gareth Edwards’ suggestion that the Springboks have disrespected the tourists with their second Test team selection.