Top-ranked Novak Djokovic will open the Davis Cup semifinals against Vasek Pospisil on Friday when Serbia takes on Canada.
In the other singles match announced Thursday, Janko Tipsarevic will face Milos Raonic, Canada's top player.
The doubles will be played Saturday and reverse singles are Sunday in Belgrade.
Djokovic hopes to recover from the jet leg after losing the US Open final to Rafael Nadal on Monday.
''I arrived yesterday, but it's not the first time that I have one or two days to get ready,'' said Djokovic, who lost in four sets in New York. ''I know my body, and I hope I can prepare for the opening match.''
Making things even more difficult for the 26-year-old Serb is the choice of an indoor clay court -- originally picked by the hosts to slow Raonic's booming serve. Djokovic will have to adjust to the change in surfaces in the middle of the hard-court season.
''It's obvious that I'm tired, time zones, jet leg, plus adjustment to the clay, but I feel fine and have a...