Raducanu stars as Britain see off holders Canada to set up BJK Cup semi against Slovakia

They will play Slovakia for a place in the final on Tuesday. Poland and Italy will face off in the other semi-final on Monday.

Raducanu broke in the first game as she started off with a bagel against Rebecca Marino, who made her debut in the event in 2011.

The second set went with serve until the 2021 US Open champion broke to lead 6-5 before wrapping up a 6-0, 7-5 victory to give her team a 1-0 lead in the contest.

Boulter then sealed their last-four spot as she beat Leylah Fernandez 6-2, 6-4.

Fernandez had won 16 of her previous 17 Billie Jean King Cup matches, including all eight she played last year as she helped lead Canada to the title.

Britain are one of only four nations - alongside Australia, France and Italy - to have competed in the tournament every season since it was launched in 1963.

However, they are the only one of those teams to have never lifted the trophy, losing in four finals.