A female boxer died from a head injury sustained in Colorado Golden Gloves competition, the Denver County coroner's office said Monday. Becky Zerlentes, 34, of Fort Collins, died Sunday afternoon, Howard Daniel said.

The preliminary cause of death was blunt force trauma to the head, but results from an autopsy conducted Monday were not immediately available. Zerlentes was hit by a punch from Heather Schmitz, and despite wearing protective headgear fell unconscious during the third round of a bout late Saturday, USA Boxing spokeswoman Julie Goldsticker said. Physicians jumped into the ring, but Zerlentes never regained consciousness and died several hours later. Zerlentes had a 6-4 record.