http://espn.go.com/nfl/story/_/id/9971641/todd-christensen-formerly-raiders-dies-57

Todd Christensen, a five-time Pro Bowl tight end who played most of his career for the Raiders, died Wednesday from complications during liver transplant surgery. He was 57.

Brigham Young University, where Christensen starred as a running back from 1974 to 1977 and was inducted into the school's hall of fame in 1992, said in a tweet Wednesday he died from complications from surgery.

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Todd Christensen played in 136 games for the Raiders, helping the franchise to two Super Bowl wins.
Christensen's son Toby later told The Associated Press his father passed away Wednesday morning at Intermountain Medical Center near his home in Alpine, Utah. The Salt Lake Tribune reported he battled liver disease and other serious illnesses in recent years.

"I've been receiving hundreds of texts, Facebook postings and emails -- from everybody with a story about my dad," Toby Christensen said.

A member of four Western Athletic Conference championship teams at BYU, Christensen was a first-team WAC selection as a senior. He finished his college career with 1,089 rushing yards and seven touchdowns along with 1,566 receiving yards and 13 touchdown receptions.