Tomáš Macháč of the Czech Republic caused an upset in the opening rubber of his country's Davis Cup tie with France by defeating Richard Gasquet ©Getty Images

Sweden, France and Croatia won their opening group matches on day one of the new-look Davis Cup Finals.

The Finals, delayed by last year because of the coronavirus pandemic, feature 18 teams competing in six groups, with group stage matches held across three locations.

In today’s Group C match, contested at the Olympiahalle in Innsbruck, Austria, France beat the Czech Republic 2-1.

Czech Republic won the first rubber with Tomáš Macháč, the world number 131, scoring a big upset when he beat France’s Richard Gasquet, the world number 81, 7-6, 6-2.

Adrian Mannarino came back from a set down to defeat Jiri Vesely 6-7, 6-4, 6-2 in the second rubber before victory was secured by Pierre Hugues-Herbert and Nicolas Mahut in the doubles, as they overcame Jiri Lehecka and Macháč 3-6, 6-4, 6-3.

Sweden, France and Croatia won their group matches on the opening day of the Davis Cup Finals ©Getty Images
Sweden, France and Croatia won their group matches on the opening day of the Davis Cup Finals ©Getty Images

In Group B, held at the Madrid Arena in Spain, Sweden beat Canada 3-0, with brothers Mikel and Elias Ymer both recording straight sets wins in their singles matches, before victory was completed in the doubles by Andre Goransson and Robert Lindstedt.

The day’s Group D game, which took place at the Pala Alpitour in Turin, Italy, saw Croatia overcome Australia 3-0, with Borna Gojo and Marin Cilic victorious in the singles, before Tokyo 2020 men’s doubles gold medal winning pairing Nikola Mektic and Mate Pavic secured a whitewash victory.

Tomorrow’s scheduled matches see all three co-hosts in action with holders Spain, now missing talented teenager Carlos Alcaraz after a positive coronavirus test taking on Ecuador in Group A, Austria, who will be competing behind closed doors due to coronavirus restrictions in the country facing Serbia in Group F, and Italy up against the United States in Group E.

The six group winners and two best runners-up will advance to the quarter-finals, and from this point onwards all knockout matches are scheduled to be held in Madrid.