Complex sentence: Boycott's father had a serious accident while working as a coalminer, suffering severe damage to his spine after he was hit by empty coal carts; He never fully recovered, and died in 1967.
Split into simpler sentences: Boycott's father had a serious accident while working as a coalminer. His spine was severely damaged after he was hit by empty coal carts; Thomas Boycott never fully recovered, and died in 1967.