Roger Federer suffered a surprise defeat in the fourth round of the Sony Ericsson Open in Miami as Tomáš Berdych triumphed 6-4 6-7(3/7) 7-6(8/6).

Roger Federer suffered a surprise defeat in the fourth round of the Sony Ericsson Open in Miami as Tomáš Berdych triumphed 6-4 6-7(3/7) 7-6(8/6).
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