South Africa forward, Percy Tau has revealed that goalkeeper and captain, Ronwen Williams failed to save any penalty during the game against Nigeria because it was not just his day. Williams was the hero for Bafana Bafana in their shootout win against Cape Verde in the quarterfinals. However, he was unable to save any of the spot kicks he faced during the semifinal clash with Nigeria. Jose Peseiro’s men beat South Africa 4 -2 in the shootout to progress to the final where they will face Ivory Coast on Sunday. “He tried his best to save some of the penalties but sometimes it happens that it’s n…