ESTORIL, PORTUGAL - APRIL 26: Taro Daniel from Japan during the match between Taro Daniel and Steven Diez for Millennium Estoril Open 2016 at Clube de Tenis do Estoril on April 26, 2016 in Estoril, Portugal. (Photo by Carlos Rodrigues/Getty Images)
ESTORIL, PORTUGAL - APRIL 26: Taro Daniel from Japan during the match between Taro Daniel and Steven Diez for Millennium Estoril Open 2016 at Clube de Tenis do Estoril on April 26, 2016 in Estoril, Portugal. (Photo by Carlos Rodrigues/Getty Images)