They also found a recreational program for people with similar injuries.
Several fighters have tried to return from a similar injury too quickly and paid the price.
He had surgery to repair a similar injury a year ago.
The scientists hope to eventually help human victims of similar injuries.
The other man, whom the police did not immediately identify, was also in serious condition with similar injuries.
He missed most of the 2003 season with a similar injury.
He said teammates with similar injuries did not sound optimistic.
A similar injury caused him to miss 31 games last season.
Such failure was found to be the cause of further similar injury to the child.
Last year, he had a similar injury to the right big toe.
