British number one Katie Boulter got her 2025 season off to a winning start as she helped Great Britain to an opening victory over Argentina in the United Cup.

Boulter beat Nadia Podoroska in straight sets in Sydney, then paired up with Charles Broom in the doubles to secure the tie after Billy Harris had lost his singles rubber to Tomas Martin Etcheverry.

Boulter – who this week could face fiance Alex De Minaur when Britain face Australia – wrapped up a 6-2 6-3 win over Podoroska, the world 100, in their first meeting.

Harris, stepping up on the men’s side in the absence of the injured Jack Draper, looked set to continue the winning theme as the took the first set against Etcheverry 6-3.

But a rankings difference of 66 kicked in and Etcheverry won the next two sets 6-3 6-2 to level the tie, leaving Boulter and Broom to secure victory with a 7-6 (4) 7-5 win over Etcheverry and Maria Lourdes Carle.

Boulter told the United Cup website: “Very, very pleased with today. Last year I played so well in singles and didn’t get any mixed doubles rubbers, so I really wanted this one so badly.

“I feel like we both played so great together considering it’s our first time. But I’m just thrilled to get the win.”