South Africa's AB de Villiers has overtaken team-mate Hashim Amla to become the No 1 Test batsman in the world.
De Villiers, 29, hit a superb 164 in the second Test against Pakistan in Dubai. He and skipper Graeme Smith, who made 234, put on 338 - a South African record for the fifth wicket - and the Proteas won the match by an innings and 92 runs on Saturday.
De Villiers, who had scored a fighting 90 in South Africa's seven-wicket defeat in the first Test in Abu Dhabi, earned 27 points to reach 900 points in the ICC ratings.
He is the fifth South African and 28th batsmen in the world to reach 900 rating points. Before him Dudley Nourse, Graeme Pollock, Jacques Kallis and Amla were the other South Africans to achieve the distinction.
Amla missed the Dubai Test after returning home for the birth of his child.
West Indian Shivnarine Chanderpaul is third in the batsmen's rankings.
Smith returned to the top ten of Test batsmen after his monumental 234. The South African skipper jumped seven places and is now eighth in the rankings.
Smith's counterpart, Misbah-ul Haq achieved a career-best sixth spot after scoring a century in Abu Dhabi and a battling 88 on Saturday.
Dale Steyn of South Africa remains the world's best Test bowler according to the rankings.
Pakistan moved up to fourth in the Test team rankings after sliding to sixth following their embarrassing defeat against Zimbabwe last month.
South Africa remain the world's best Test team followed by Ashes winners England and then India.