Fresh from his most prestigious victory to date, Adam Kirby is looking to break new ground in America this weekend.Kirby will team up with Walter Swinburn's Stotsfold in the Arlington Million, and will be joined by another British-trained raider, Luca Cumani's Cima de Triomphe. The 20-year-old jockey enjoyed a memorable success on Clive Cox's Xtension in last week's Vintage Stakes at Goodwood.Kirby said: "I've never ridden over there before. It's very unlikely I'll get another ride, but I'm going out there with the boss on Thursday and he will walk the course with me."He added: "I'm very excited. I'm more nervous about the plane journey than the race, but it's a nice opportunity. He's a very good horse and as long as things go to plan, I think he should have a good chance."