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By Edward McAllister and Gerauds Wilfried Obangome LIBREVILLE (Reuters) - Gabon opposition leader Jean Ping on Saturday rejected what he said was an "unjust" ruling by the Constitutional Court which upheld the victory of President Ali Bongo in the Aug. 27 poll that he says was tarnished by fraud. The refusal by Ping, who says he won the presidential poll, to accept the court ruling raises the prospect of a potentially violent political crisis in the central African oil producer. The court had agreed to Ping's petition to re-examine results in Haut-Ogooue province, where Bongo was declared to have won 95 percent on a turnout of 99.9 percent.
French Open winner Garbine Muguruza said Sunday that it was about time women's tennis had a "new face" at the top, after Angelique Kerber broke Serena Williams' 186-week dominance atop the rankings. Kerber became number one when Karolina Pliskova dispatched Williams in the semi-final of the US Open earlier this month. The German beat Pliskova in the final to claim her second slam of the year after victory at the Australian Open in January, where she beat Williams in the final.