Mr Knibbs represented England at under - 23 level .
Mr Knibbs played 436 times for Bristol Rugby Football Club , scoring 123 tries during his career spanning the 1970s and 1980s .
Mr Knibbs represented England at under - 23 level and played 436 times for Bristol Rugby Football Club , scoring 123 tries during his career spanning the 1970s and 1980s .