Cameron Norrie defeated Greek world number 15 Stefanos Tsitsipas in straight sets to inspire Good Britain to victory in the opening tie of the Hopman Cup in Australia.
World number 9 1 Norrie, 2 3, procured the biggest win of his career having a 7-6 (10-8) 6-4 triumph over Tsitsipas.
Team mate Katie Boulter, 22, was beaten 6-0 4-6 6-2 from Maria Sakkari from the girls singles rubber.
However, the Britons won the mixed doubles 43 3-4 (2-5) 43 (5-4) to gain the tie.
Even the Hopman Cup, played Perth, comprises two singles games and also a mixed-doubles competition between states in a round robin format with 2 groups of four.
Norrie and Boulter will face Switzerland’s Roger Federer and Belinda Bencic on Sunday before playing Serena Williams and Frances Tiafoe of their USA on Thursday.
The champions of both groups will contest Saturday’s final.