Proteas white-ball coach Rob Walter has risked his team’s ICC Champions Trophy success in Pakistan after selecting two injury-prone fast bowlers.Walter named both Anrich Nortjé and Lungi Ngidi in his 15-man squad on Monday, despite both only recently returning from injury.Ngidi played his first competitive match last Saturday since suffering a long-term groin injury, which has kept him on the sidelines since October.He certainly looked rusty, with the Royals not even utilising him with the new ball and preferring teenager Kwena Maphaka instead, as he returned the uninspiring figures of…