Andy Murray and Laura Robson have teamed up to take Great Britain within one victory of winning a tournament.
The pair are playing in an event called the Hopman Cup in Australia, where one male and one female player represent their country in a team event.
Murray and Robson have now defeated teams from three other countries, and will play Spain in Saturday's final.
Each clash is made up of three matches - one women's singles, one men's singles and a mixed doubles match.
So far Great Britain's progress in the competition has been the same in each round - Robson has lost her singles match, Murray has won his, and then they have teamed up to win the deciding mixed doubles match.
Robson, 15, has been taking on players much older and with better world rankings than herself, but has still performed well without winning.
Murray has been in fantastic form, blasting his way past opponents in some very quick matches.