Given the question: Facts:   - clubs: fremad amager    - caps: 202    - position: forward    - nationalcaps: 4    - nationalyears: 1964-1965    - youthclubs: fremad amager bk frem    - nationalgoals: 4      - birth date: 31 march 1943    - fullname: leif nielsen    - name: leif nielsen    - nationalteam: denmark u21    - birth place: copenhagen , denmark    - goals: 98   Based on these bullet points, write a short biography describing the life of leif nielsen -lrb- footballer born 1943 -rrb- .
The answer is:
leif nielsen -lrb- born 31 march 1943 -rrb- is a danish former football -lrb- soccer -rrb- player , who played for fremad amager and bk frem in denmark .nielsen was the top goalscorer of the 1967 danish football championship .he played four games and scored four goals for the denmark national under-21 football team .