Great Britain have reached a third Billie Jean King Cup semi-final in four years but face their toughest test yet against a United States team packed with talent.
To reach a first final since 1981, GB will probably need Katie Boulter to beat world number seven Jessica Pegula and Sonay Kartal to overcome world number 18 Emma Navarro.
It has been 33 years since the two nations met at the tournament, but it is a match-up historically dominated by the US.
They have won nine out of 10 previous meetings in the BJK Cup - previously known as the Fed Cup and Federation Cup - while GB's only triumph came in 1970 with a team that included three-time major champion Virginia Wade.
But Anne Keothavong's team have displayed a remarkable amount of determination to reach another semi-final, doing so even without their top player Emma Raducanu who chose to play a WTA Tour event in Seoul this week.
GB have reached the final four times but never lifted the trophy and there is belief that this team can be the first to do so.