Please answer the following question: Facts:   - headercolor: lightsteelblue      - birth date: 4 january 1938    - name: boris grishin    - birth place: moscow   Based on these bullet points, write a short biography describing the life of boris grishin .
Answer:
boris dmitriyevich grishin -lrb- , born 4 january 1938 in moscow -rrb- is a russian water polo player who competed for the soviet union in the 1964 and the 1968 summer olympics .he is married to fencer valentina rastvorova .his son yevgeny was also a successful water polo player .