Complex sentence: He continued with the team until 1998, the year he suffered near fatal injuries with a crash at Donington Park's Craner Curves and was initially thought to have suffered only scrapes and bruises before complaining of pain.
Split into simpler sentences: He continued with the team until 1998, the year he suffered near fatal injuries with a crash at Donington Park. He crashed at Craner Curves and was initially thought to have suffered only scrapes and bruises before complaining of pain.