Order of play on the main showcourts on the seventh day of the Australian Open on Sunday (prefix number denotes seeding, fourth round matches unless mentioned):
ROD LAVER ARENA (play begins at 0000 GMT)
31-Anett Kontaveit (Estonia) v Carla Suarez Navarro (Spain)
19-Magdalena Rybarikova (Slovakia) v 2-Caroline Wozniacki (Denmark)
1-Rafa Nadal (Spain) v 24-Diego Schwartzman (Argentina)
Not before 0800 GMT
3-Grigor Dimitrov (Bulgaria) v 17-Nick Kyrgios (Australia)
Denisa Allertova (Czech Republic) v 4-Elina Svitolina (Ukraine)
MARGARET COURT ARENA
Not before 0130 GMT
10-Pablo Carreno Busta (Spain) v 6-Marin Cilic (Croatia)
Petra Martic (Croatia) v Elise Mertens (Belgium)
HISENSE ARENA
Not before 0500 GMT
Kyle Edmund (Britain) v Andreas Seppi (Italy)