Please answer the following question: Facts:   - clubs: sv kaiserslautern kickers offenbach karlsruher sc wormatia worms geinsheim vfr frankenthal tsg pfeddersheim 1 . fc    - caps: 9 7 5 61 9 74    - position: midfielder/striker    - years: 1994 2001 -- 2003 2003 -- 2006 -- 1997 1997 -- 1999 1999 -- 2001    - height: 1.87 0    - youthclubs: sv geinsheim vfr frankenthal      - birth date: 21 april 1969    - name: stefan ertl    - goals: 1 0 0 9 0 21   Based on these bullet points, write a short biography describing the life of stefan ertl .
Answer:
stefan ertl -lrb- born 21 april 1969 -rrb- is a retired german football player .he spent two seasons in the bundesliga with borussia mönchengladbach and 1 .fc kaiserslautern .