Complex sentence: Daniel Edward O'Leary (born September 1,1979 in Cleveland, Ohio) was an American football tight end in the National Football League for the Buffalo Bills, New York Giants, and the Pittsburgh Steelers.
Split into simpler sentences: Daniel Edward O'Leary (born September 1,1979 in Cleveland, Ohio) is a former American football tight end in the National Football League. He played for the Buffalo Bills, the New York Giants, and the Pittsburgh Steelers.