BRATISLAVA, Sept 20, 2008 (AFP) - Results in the Davis Cup World Group play-off here on Saturday:

Viktor Troicki/Nenad Zimonjic (Serbia) bt Michal Mertinak/Filip Polasek (Slovakia) 7-6 (10/8), 6-4, 6-7 (7/9), 7-6 (7/5)

Novak Djokovic (Serbia) bt Dominik Hrbaty (Slovakia) 6-2, 6-4, 6-3

Janko Tipsarevic (Serbia) bt Lukas Lacko (Slovakia) 6-7 (3/7), 4-6, 6-4, 7-6 (7/5), 8-6

Lukas Lacko (Slovakia) v Novak Djokovic (Serbia)

Dominik Hrbaty (Slovakia) v Janko Tipsarevic (Serbia)