Given the question: Facts:   - sport: men 's swimming    - residence: cardiff , wales    - caption: david roberts at the london 2008 olympic victory parade      - birth date: 25 may 1980    - fullname: david evan roberts    - name: david roberts    - image: david roberts -lrb- swimmer -rrb- 2008.jpg    - birth place: llantwit fardre , wales , united kingdom    - disability class: s7   Based on these bullet points, write a short biography describing the life of david roberts -lrb- swimmer -rrb- .
The answer is:
david evan roberts cbe -lrb- born 25 may 1980 -rrb- , is a welsh swimmer .an eleven-time paralympic gold medallist , he is one of great britain 's most successful paralympians ever .