Former Philadelphia Eagles linebacker Frank LeMaster has died at the age of 71.The Eagles announced Saturday that LeMaster died on Thursday. There were no details regarding the cause of his death.LeMaster spent all nine seasons of his NFL career with Philadelphia after being selected by the Eagles in the fourth round (89th overall) of the 1974 draft. He was a Pro Bowl selection in 1981, one season after helping Philadelphia reach its first ever Super Bowl before losing to the Oakland Raiders.