4. Serbia
Novak Djokovic is ranked number two by ATP in men’s singles and he plays for Serbia. He leads 2-0 in his game with Daniil Medvedev in the Davis Cup World Group in the first round.

Neale Cousland/Shutterstock.com
Novak Djokovic is ranked number two by ATP in men’s singles and he plays for Serbia. He leads 2-0 in his game with Daniil Medvedev in the Davis Cup World Group in the first round.
Neale Cousland/Shutterstock.com