Pakistan will clash with South Africa in a Group-B match of the ICC Champions Trophy Cricket tournament at Edgbaston, Birmingham today. The match will begin at 3 PM (IST). Both, Pakistan and South Africa had lost their opening Group match in the tournament, which, therefore, makes today's fixture a crucial one for both the teams. A defeat today will leave either South Africa or Pakistan on the brink of exit.Earlier in the two Group-B matches, while India defeated South Africa by 26 runs, Pakistan lost to the West Indies by 2 wickets.In a Group-A match last night, New Zealand beat Sri Lanka by one wicket at Cardiff.