Juan Martín del Potro, the 2009 United States Open champion and former world No. 4, beat the qualifier John-Patrick Smith, 6-4, 6-4, to advance to the quarterfinals of the Delray Beach Open in Florida. Out for 11 months because of a left wrist injury that took two operations to repair, del Potro won consecutive matches for the first time since he reached the quarterfinals in Sydney in January 2015.
u25a0 Rafael Nadal and the defending champion David Ferrer, the top two seeds, reached the quarterfinals of the Rio Open. Nadal beat Nicolás Almagro, 6-3, 7-5, and Ferrer defeated Albert Ramos-Viñolas, 4-6, 6-1, 6-4.