Donald Thomas Steinbrunner (April 5, 1932–July 20, 1967) was an American football offensive tackle who was one of only two American National Football League players to die in the Vietnam War. Donald Thomas Steinbrunner was born April 5, 1932 in Bellingham, Washington. He was an All State athlete in football and basketball at Wickersham High School. He played both sports at Washington State College (now Washington State University), and was the captain of both teams. He was also a member of ROTC in college. He was an offensive tackle with the 1953 Cleveland Browns, but a knee injury ended his professional football career after only eight games. He joined the United States Air Force, serving as a navigator. He was also an assistant football coach at the United States Air Force Academy in Col