Olympic champion Stefania Constantini has joined up with Sebastiano Arman for the World Championships, with the Italians featuring in Group A of the competition.

The duo began their campaign with a 10-3 victory over Japan, before easing to a 10-1 triumph over New Zealand in just six ends.

Home favourites Alina Paetz and Sven Michel also triumphed in their opening Group A matches.

The Swiss team recorded a 7-4 win over Norway, before winning 9-4 against Switzerland in their second fixture.

Denmark complete a trio of teams at the top of the Group A standings.

Jasmin Lander and Henrik Holtermann earned a 7-5 win over Finland, before matching the scoreline against South Korea.

Group B saw five teams record wins in their opening round robin fixtures.

Eve Muirhead and Bobby Lammie, who won Olympic gold and silver medals at Beijing 2022, won their opening contest.

The duo have replaced defending world champion and Olympic silver medallist skip Bruce Mouat and Muirhead's four-woman team-mate Jenn Dodds at the tournament.

The Scotland pairing earned an 8-3 win over England to begin their tournament strongly.

United States were 9-6 winners over the Czech Republic and Hungary overcame Australia 7-5 in another Group B contest.

Canada recorded a 9-3 win over Germany, while Spain secured a 9-2 triumph over Turkey.