The 2019 Davis Cup was the 108th edition of the Davis Cup, a tournament between national teams in men's tennis. It was sponsored by Rakuten. For this edition, the format of the cup was changed. The main modification is the World Group took place at one location and in one week, with eighteen teams divided in six round-robin groups of three teams each, with the winners of the groups and the two best second places advancing to quarterfinals. The series between the teams in this stage featured two singles matches and one doubles match, instead of the best-of-5 series, with the matches changing from best of 5 sets to best of 3. As the World Group was taking place as one single tournament, this event had been named the 2019 Davis Cup Finals. The lower zone groups I and II were composed of singl