John Isner is set to return from a knee injury and will play the No. 1 singles spot for the U.S. team against Brazil in the first round of Davis Cup World Group matches.
Australian Open champion Novak Djokovic of Serbia will face 127th-ranked Olivier Rochus of Belgium on Friday in the first round of the Davis Cup.
The Davis Cup champion Czech Republic begins defending its title on Friday when Lukas Rosol opens against Stanislas Wawrinka of Switzerland.
Roger Federer might play in the Davis Cup again, although the 17-time Grand Slam champion won't represent his country before the U.S. Open in September.
After beating Andy Murray to become the only man to win three consecutive Australian Open titles, the No. 1-ranked player didn't feel the need to celebrate immediately. Instead, he booked an early Monday flight home to start preparing for his next challenge: the clay courts of Europe.
In years past, Novak Djokovic marked his victories at the Australian Open with rowdy late-night celebrations and bleary-eyed photo shoots the next morning in downtown Melbourne.
Novak Djokovic wrapped up his victory at the Australian Open on a sweet note.
Nicolas Almagro has withdrawn from Spain's Davis Cup first-round tie against Canada because of an injury.
Spain will open the Davis Cup against Canada without injured star Rafael Nadal or regular member David Ferrer.