Complex sentence: Thomas "Tom" Allen Thayer (born August 16,1961 in Joliet, Illinois) is a former American-football center/guard in the National Football League for the Chicago Bears and the Miami Dolphins.
Split into simpler sentences: Thomas "Tom" Allen Thayer (born August 16,1961 in Joliet, Illinois) is a former American-football center/guard. He played in the National Football League for the Chicago Bears and the Miami Dolphins.