World No. 2 Karolina Pliskova parts ways with coach Martinez

Naomi Osaka, Simona Halep through to China Open second round

Osaka hails 'special' hometown victory after cruising to Pan Pacific Open title

Osaka one win from glory in Pan Pacific as surprise package Pavlyuchenkova awaits

Bertens, Stephens, Vekic all dumped out in Osaka

Pan Pacific Open: Madison Keys maintains Kasatkina dominance

Naomi Osaka splits with coach yet again

Japan’s Osaka has ‘no regrets’ over chaotic US Open final

Wozniacki eyes top after retaining Tokyo title

Wozniacki sinks Russian to retain Tokyo title

Wozniacki batters Muguruza, Pavlyuchenkova gets past Kerber to advance to Tokyo final

Kerber, Muguruza power into Tokyo semis

Muguruza crushes Puig to advance in Tokyo

Cibulkova tears through Tokyo opener

Kerber exorcises New York demons in Tokyo