Junior Seau’s family will allow the football star’s brain to be studied by doctors to see whether he suffered brain injuries during his long career.

The decision came after the San Diego County medical examiner concluded that Seau died of a self-inflicted gunshot wound to the chest.

In a news release, the medical examiner’s office said it is "awaiting the the family’s decision regarding the study of the brain for repetitive injury by researchers outside of the office."

Seau, 43, a star football player at USC and for the San Diego Chargers, was found dead in bed at his Oceanside home about 9:30 a.m. Wednesday by his girlfriend. A gun was found near the body but no note.

San Diego Chargers chaplain Shawn Mitchell told The Times’ Sam Farmer: "The family was considering this almost from the beginning, but they didn’t want to make any emotional decisions. And when they came to a joint decision that absolutely this was the best thing, it was a natural occurrence for the Seau family to go forward."

The issue of brain injuries among football players has been highlighted by the early death of numerous former players. Although Seau was not known publicly for having had concussions, that does not rule out the possibility of brain injuries incurred during his long career, specialists said.

Researchers at Boston University, leaders in the study of brain injury, have reportedly asked to examine Seau’s brain, a decision that is up to the family.

Asked whether he had suffered concussions during his 20-year career, Seau’s ex-wife, Gina, told ESPN, "Of course he had. He always bounced back and kept on playing. He’s a warrior. That didn’t stop him. I don’t know what football player hasn’t. It’s not ballet. It’s part of the game."

Seau, an All-American at USC and 12-time NFL Pro Bowl linebacker, played 13 seasons with the San Diego Chargers and three seasons with the Miami Dolphins. He left the game briefly but then played with the New England Patriots for four seasons before calling it quits for good after the 2009 season.

After Seau’s death was announced by police Wednesday, the San Diego Chargers urged fans to pray.

"Everyone at the Chargers is in complete shock and disbelief right now," the team said in a statement. "We ask everyone to stop what they’re doing and send their prayers to Junior and his family…. The outpouring of emotion is no surprise."

At USC, Athletic Director Pat Haden called Seau "one of the greatest legends in USC football history. He will always be remembered by USC as the original No. 55."

"He was one of the greatest Trojans of all time," USC football Coach Lane Kiffin said in a statement.

Former USC football star Reggie Bush, who like Seau went to high school in the San Diego area, said on Twitter: "This one hurts San Diego! One of the greatest to come from the city."

Seau, who graduated from Oceanside High as a multi-sport letterman, is a member of the high school’s Hall of Fame. Officials with the Oceanside Unified School District called his death “a huge loss.”

“Today’s passing of former Oceanside High School standout Junior Seau is a huge loss for his family, the Oceanside community and our district,” district officials said in a statement. “Junior personally contributed many positive things to those residing in the North County, most particularly his alma mater, Oceanside High School."