Serena Williams might well be “stressed and excited” at the prospect of her season clay debut at the French Open.
Venus Williams fends off three match points before outlasting Dutch 29th seed Bertens.
Indian Wells champion Naomi Osaka defeated 23-times grand slam champion Serena Williams 6-3 6-2 in the Miami Open.
Kohlschreiber upset second seed Cilic 6-4 6-4 to advance to the BNP fourth round.
Serena Williams’ return to the WTA Tour came to an abrupt end as she crashed out of Indian Wells with a 6-3, 6-4 loss.
World number one Federer finishes off Delbonis in a rain-disrupted match.