Emma Raducanu moved into the last 16 of the Miami Open after her American opponent McCartney Kessler was forced to retire with a back injury.

Going into today's clash against Amanda Anisimova, Raducanu is riding a three-match winning streak. But just before launching her Miami campaign, the 22-year-old had lost six of her past seven matches. Reflecting on her promising run in South Beach, she highlighted the major improvement in her game.

Emma Raducanu believes she is reaping the benefits of a relaxed approach after wasting little time reaching the last 16 of the Miami Open. Raducanu produced a blistering display to lead in-form McCartney Kessler 6-1 3-0 before the American retired from the match through injury.

Britain's Emma Raducanu is through to the last 16 of the Miami Open after opponent McCartney Kessler retired injured at the start of the second set.

Australian Open champion Madison Keys suffered a shock 6-4, 6-2 defeat in the third round of the Miami Open to Filipina teenager Alexandra Eala.

Filipino 19-year-old Alexandra Eala stunned Australian Open winner Madison Keys 6-4, 6-2 in the Round of 32 at the Miami Open on Sunday. Eala, in the field as a wild card, had won just three WTA 1000-level matches in her young career before taking down the fifth-seeded Keys in one hour and 27 minutes.