Claire Liu and Ann Li won their semifinals at the All England Club on Friday. Liu, who is from California, beat Sofya Lansere of Russia 6-1, 6-3. Li is from Pennsylvania and she defeated Simona Waltert of Switzerland 7-6 (4), 6-1.

It will be the first all-American girls final at Wimbledon since 1979, when Mary Lou Piatek beat Alysia Moulton.

It's also the second consecutive Grand Slam girls' singles final between Americans. Whitney Osuigwe beat Liu at the French Open last month.