MIAMI (Reuters) - After two days of rain the sun returned to the Miami Open but it was still a gloomy Saturday for U.S. tennis fans as three of the top four-ranked American men led by 12th seed Taylor Fritz crashed out in the second round.

Joining Fritz at the Hard Rock stadium exit were 13th seed Tommy Paul and 21st-seeded Frances Tiafoe to leave number 16 Ben Shelton as the highest-ranked home grown hope.