Cho Gue-song scored at the death and goalkeeper Jo Hyeon-woo saved twice in the deciding shoot-out as South Korea beat Saudi Arabia 4-2 on penalties on Tuesday to reach the quarter-finals of the Asian Cup in Qatar. Abdullah Radif had given Saudi Arabia a 46th-minute lead in Al-Rayyan but Cho’s header nine minutes into stoppage time forced extra time and eventually the shoot-out. Captain Son Heung-min converted first from the spot for Jürgen Klinsmann’s team, and after a 2-2 deadlock Jo saved the next penalties from Sami Al Naj and Abdulrahman Ghareeb before Hwang Hee-chan wrapped up matters in…