Bratislava - Angelique Kerber qualified Germany for the Fed Cup semi-finals on Sunday when she defeated Slovakia's Dominika Cibulkova 6-3, 7-6 (7/5) in the first of the reverse singles.
The win gave the Germans, who last won the Fed Cup in 1992, an unassailable 3-0 lead in the tie.
Kerber defeated Daniela Hantuchova 7-6 (11/9), 6-1 in the second of Saturday's two singles, after Andrea Petkovic had saved a match point en route to a 1-6, 7-6 (9/7), 6-2 win over Cibulkova.
Next up for Germany will be a semi-final matchup against Australia, who defeated an understrength Russia team 4-0 in Hobart, Tasmania earlier on Sunday.