Monica Seles was the defending champion, but chose not to participate. Steffi Graf won the title, defeating Arantxa Sánchez Vicario in the finals, 6–3, 4–6, 7–6(8–6). Seeds The top eight seeds received a bye to the second round. Draw Finals Top half Section 1 Section 2 Bottom half Section 1 Section 2 References External links ITF tournament edition details Lufthansa Cup WTA German Open 1991 in German tennis