Mixed martial artist Sam Vasquez died due to "complications of blunt trauma to the head with subdural hemorrhage," the Harris County Medical Examiner's Office has concluded.

The official manner of death is classified as accidental, reported the Houston Chronicle.

Vasquez died at age 35 on Nov. 30, 2007. He had participated in his third sanctioned mixed martial arts fight on Oct. 20. Vince Libardi stopped him late in the third round of their bout at the Toyota Center in Houston. Vasquez collapsed and was rushed to St. Joseph Medical Center in downtown Houston, where he remained before being discharged to a hospice.

In late March, Stephen Bruno of the Texas Department of Licensing and Regulation confirmed in an e-mail to Sherdog.com that a detailed report compiled by his agency will be released. However, he added that the report cannot be finished until a detailed autopsy is filed.

Though the cause and the manner of death have been filed, it is still too early to tell whether the injuries occurred all at once or whether an accumulation of blows over time led to his death. The expectation is that once the autopsy is revealed, these circumstances can be fully explained in relation to Vasquez's death.