Former world boxing champion "Prince" Naseem Hamed has been stripped of his MBE.
The honour was revoked following Hamed's 15-month prison sentence for dangerous driving.
Hamed's former trainer Brendan Ingle said it would be a "terrible blow" to the former featherweight.
He said: "He will be very upset. It is really sad the way things have turned out. He was a fantastic champion."
Mr Ingle said the boxer, his family, and the whole of the Sheffield community, were extremely proud when Hamed received his award.
But he said: "The point is you have got to have sympathy for (Anthony) Burgin, he was the innocent party."
Hamed was driving his £320,000 Mercedes McLaren at a speed of at least 90mph on the wrong side of the carriageway when he crashed head-on with Mr Burgin's Volkswagen Golf in May 2005.
The 32-year-old, of Dore, Sheffield, walked free from Moorland open prison in Doncaster, South Yorkshire, in September, after serving just 16 weeks.
Mr Burgin, whose car was stopped and propelled backwards by the impact, suffered fractures to every major bone in his body.
Notice of the award's withdrawal was given in The London Gazette, an official newspaper of the Crown, on December 12.
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