MANILA, Philippines – Grigor Dimitrov of Bulgaria caused a sensation after defeating world No. 1 Novak Djokovic in the second round of the Madrid Open. The 21-year-old Bulgarian, ranked 28 in the world, produced a range of brilliant shots throughout the match to win 7-6, 6-7, and 6-3. Djokovic was already trailing by a break in the second set when he rolled an ankle and required 10 minutes of treatment on the court. -- Mornings @ ANC, May 8, 2013