In the world group, Serbia face Croatia with Novak Djokovic playing Mate Delic in the first round of the singles.
Later on in the weekend, Djokovic will play Borna Coric who has beaten Rafael Nadal and Andy Murray.
Novak Djokovic has nothing but praise for the eighteen year old.
"I only have words of praise for him. I can say nothing bad about him and as I have been saying before, he has enormous potential, to be top player and he is on the right path. That is the impression that he is very mature for his age, something that cannot be seen very often in top sports, especially in tennis."
Meanwhile in Glasgow today, Andy Murray opens against Donald Young. Murray is not expected to take part in Great Britain's Davis Cup tie against the United States.
