Results on day nine of the inaugural ATP Cup team event in Sydney on Saturday: Semi-finals Serbia 3 Russia 0 Dusan Lajovic (SRB) bt Karen Khachanov (RUS) 7-5, 7-6 (7/1) Novak Djokovic (SRB) bt Daniil Medvedev (RUS) 6-1, 5-7, 6-4 Viktor Troicki/Nikola Cacic (SRB) bt Teymuraz Gabashvili/Konstantin Kravchuk (RUS) 6-4, 7-6 (9/7) Playing later Australia v Spain Nick Kyrgios v Roberto Bautista Agut (ESP) Alex de Minaur (AUS) v Rafael Nadal (ESP) Chris Guccione/John Peers (AUS) v Rafael Nadal/Pablo Carreno Busta (ESP) afp