Here’s what to watch at the Miami Open on Thursday with two former No. 1s in action

The early-round action from the main draws of the Miami Open continues Thursday at Hard Rock Stadium.

Thursday’s night session will feature former No. 1 Andy Murray against Federico Delbonis of Argentina and No. 1 women’s seed Aryna Sabalenka against Irina-Cameia Begu of Romania.

Former No. 1 Naomi Osaka, who won her opening match 6-3, 6-4 over Astra Sharma on Wednesday, will face Angelique Kerber on Thursday afternoon and American Sebastian Korda will also be in action.

Among the notable results from Wednesday’s sessions, Argentine brothers Francisco Cerundolo and Juan Manuel Cerundolo won their back-to-back matches on Court 5. Francisco, 23, beat Tallon Griekspoor of the Netherlands 7-5, 4-6, 6-3 and younger brother Juan Manuel, 20, beat Dusan Lajovic of Serbia 6-3, 7-5. In the night session, Australian Nick Kyrgios advanced with a 7-6 (7-3), 6-3 win over Adrian Mannarino.

American Mackenzie McDonald beat Dominik Koepfer of Germany 6-7 (8-10), 6-4, 6-4 on Stadium Court. On the women’s side American Madison Brengle advanced with a 6-2, 6-1 win over wild card Alexandra Eala of the Philippines, Sloane Stephens won 6-4, 6-3 against Panna Udvardy and Lauren Davis beat Yue Yuan 6-4, 6-1.