The worst injury ever has to be David Busst's leg injury. His playing career came to an end on April 8, 1996 for Coventry, against Manchester United. Two minutes into the match, Busst collided with United players Denis Irwin and Brian McClair, resulting in extensive fractures to both the tibia and fibula of his right leg. The match had to be delayed for 15 minutes while the blood was cleaned off the pitch. It is reputed that Manchester United's goalkeeper Peter Schmeichel vomited on the pitch upon seeing the injury and had to have counselling afterwards, along with a number of other players. It is commonly regarded as the worst single injury ever witnessed in the Premiership's history, made even more tragic because Busst was in the running for an England squad call-up at the time.
Busst's injuries were so bad that he at one point ran the risk of having his leg amputated. Despite having 26 operations, Busst remained a member of the Coventry squad but never played again and retired from the game following advice from his doctors on 6 November 1996 at the age of 29.