Complex sentence: Karl Meiler (born April 30,1949 in Erlangen) is a former tennis player from Germany, who won four singles (1972, Buenos Aires; 1974, Omaha and Calgary; 1977, Manila) and seventeen doubles titles during his professional career.
Split into simpler sentences: Karl Meiler (born April 30,1949 in Erlangen) is a former tennis player from Germany. Meiler won four singles (1972, Buenos Aires; 1974, Omaha and Calgary; 1977, Manila) and seventeen doubles titles during his professional career.