Canada began their Davis Cup Finals campaign in confident fashion as wins for Denis Shapovalov and Felix Auger-Aliassime assured them of victory in their opening Group D tie against Argentina in Manchester on Tuesday.

The U.S. also won the doubles: Austin Krajicek and Rajeev Ram, who lost the men's doubles final at the Paris Olympics last month, rallied to beat Klein and Norbert Gombos 6-7 (4), 7-6 (4), 10-1, winning 15 of the last 16 points.

(Updates headline, no change to text) (Reuters) -Australia edged out France in the standout tie of the opening day of the Davis Cup Finals group stage action on Tuesday with Matthew Ebden and Max Purcell claiming the doubles decider in the Group B clash in Valencia.

A second-string United States team extended its Davis Cup winning run by dismantling Germany to top Group C after both countries had secured their spots in the quarterfinals.

The United States edged Germany 2-1 in Zhuhai, China, on Saturday to secure first place in Group C of the Davis Cup Finals group stage. Despite the loss, the Germans will still join the Americans in the Davis Cup Final 8 in Malaga,

A second-string United States extended their Davis Cup winning run by dismantling Germany to top Group C in Zhuhai on Saturday after both countries secured their spots in the quarter-finals of the premier men's team competition.