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Novak Djokovic scraped and slid to an opening victory at the Madrid Masters yesterday - but was scathing of the event's controversial blue clay courts - saying he would have been better off wearing football boots.
The Serbian top seed and world number one beat Spain's Daniel Gimeno-Traver 6-2, 2-6, 6-3 but said the surface was way to slippery and seriously questioned whether it had a future.
Czech sixth seed Tomas Berdych advanced over South African Kevin Anderson 6-4, 6-3.
