Collared results on day four of the inaugural ATP Cup team event being played on Monday in Sydney, Brisbane and Perth. Eight teams qualify for the knockout phase from the round robin: In Sydney Group E Croatia 2 Poland 1 Marin Cilic (CRO) bt Kacper Zuk (POL) 7-6 (10/8), 6-4 Hubert Hurkacz (POL) bt Borna Coric (CRO) 6-2, 6-2 Ivan Dodig/Nikola Mektic (CRO) bt Hubert Hurkacz/Lubasz Kubot (POL) 6-2, 6-1 Austria 3 Argentina 0 Dennis Novak (AUT) bt Guido Pella (ARG) 0-6, 6-4, 6-4. Dominic Thiem (AUT) bt Diego Schwartzman (ARG) 6-3, 7-6 (7/3) Oliver Marach/Jurgen Meltzer (AUT) bt Maximo Gonzalez/Andre Molteni (ARG) 6-1, 6-4 In Brisbane Group A South Africa 3 Chile 0 Lloyd Harris (RSA) bt Nicolas Jarry (CHI) 6-4, 6-4 Kevin Anderson (RSA) bt Cristian Garin (CHI) 6-0, 6-3 Raven Klaasen/Ruan Roelofse (RSA) bt Cristian Garin/Nicolas Jarry (CHI) 1-6, 6-3, 10-7 Serbia 2 France 1 Benoit Paire (FRA) bt Dusan Lajovic (SRB) 6-2, 6-7 (6/8), 6-4 Novak Djokovic (SRB) bt Gael Monfils (FRA) 6-3, 6-2 Novak Djokovic/Viktor Troicki (SRB) bt Nicolas Mahut/Edouard Roger-Vasselin (FRA) 6-3, 6-7 (5/7), 10-3 In Perth Group B Japan 2 Georgia 1 Go Soeda (JPN) bt Aleksandre Metreveli (GEO) 4-6, 6-3 , 6-2 Yoshihito Nishioka (JPN) bt Nikoloz Basilashvili (GEO) 6-2, 6-3 Aleksandre Bakshi/Zura Tkemaladze (GEO) bt Ben McLachlan/Toshihide Matsui (JPN) 6-2, 6-4 Spain 3 Uruguay 0 Roberto Bautista Agut (ESP) bt Franco Roncadelli (URU) 6-1, 6-2 Rafael Nadal (ESP) bt Pablo Cuevas (URU) 6-2, 6-1 Pablo Carreno Busta/Feliciano Lopez (ESP) bt Ariel Behar/Juan Martin Fumeaux (URU) 6-1, 3-6, 10-3 afp