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Andreas Seppi of Italy hits a forehand return against Roger Federer of Switzerland in their 3rd round match at the BNP Paribas Tennis Open in Indian Wells, California on March 17, 2015. Federer defeated Seppi 6-4, 6-3. AFP PHOTO/ FREDERIC J. BROWN (Photo credit should read FREDERIC J. BROWN/AFP via Getty Images)

Andreas Seppi of Italy hits a forehand return against Roger Federer of Switzerland in their 3rd round match at the BNP Paribas Tennis Open in Indian Wells, California on March 17, 2015. Federer defeated Seppi 6-4, 6-3. AFP PHOTO/ FREDERIC J. BROWN        (Photo credit should read FREDERIC J. BROWN/AFP via Getty Images)