Peter Graf (born 18 June 1938 – 30 November 2013) was a German tennis coach. He was the father and manager of the women's former world No. 1 tennis player Steffi Graf. Early life. Graf was born in Mannheim on 18 June 1938, as the only child of Alfons and Rosemarie Graf in a strict Catholic household. After the Second World War, he attended the Karl-Friedrich-Gymnasium Mannheim. Following his mother's death in 1956, his relationship with his father was strained, and the two did not speak for years. Graf played football for FC Friedrichsfeld. Tennis career.
https://en.wikipedia.org/wiki/Peter_Graf