World number one Roger Federer will open Switzerland's Davis Cup world group playoff against Serbia on Friday in the opening singles tie against Janko Tipsarevic.
Swiss number two Stanislas Wawrinka, currently ranked 44th in the world, faces a tougher challenge in Friday's second singles match against Serbia's top player, world number 21 Novak Djokovic.
Federer will be back on court for Saturday's doubles where he will pair up with Yves Allegro against Ilia Bozoljac and doubles specialist Nenad Zimonjic.
Sunday's action features Federer against Djokovic with Wawrinka taking on Tipsarevic.
Federer ruled himself out of Switzerland's first round tie against Australia in February but has made himself available for the tie against Serbia which the Swiss need to win to stay in the world group.
Switzerland are hoping for a repeat of last year's Davis Cup action where Federer was absent for their 3-2 first round defeat against the Netherlands but returned to lead the Swiss to a 5-0 whitewash of Britain in the playoff.
Federer has managed to win Davis Cup ties almost single-handedly on four occasions for Switzerland, taking three points in previous encounters with Romania, France, Morocco and the United States.