Great Britain's number two Kyle Edmund will take on Serbia's Janko Tipsarevic in the opening match of their Davis Cup quarter-final in Belgrade on Friday.
Edmund, 21, is leading the British team as Andy Murray sits out the tie on clay following his Wimbledon victory.
Although Murray is not playing, BBC Sport has learned he is expected to fly out to support his team-mates.
In Friday's second match, British number five James Ward takes on Dusan Lajovic, the world number 81.
Saturday's doubles match will see Jamie Murray and Dom Inglot take on world number 405 Tipsarevic and Nenad Zimonjic.