David Hyde O'Brien (born June 13, 1941) is an American former professional football player who was a Tackle, defensive tackle, guard in the National Football League (NFL). He played college football for the Boston College Eagles and professionally for the Minnesota Vikings (1963âÂÂ1964), New York Giants (1965), and St. Louis Cardinals (1966âÂÂ1967).
A native of Cambridge, Massachusetts, O'Brien attended Watertown High School and then played college football as a tackle for Boston College from 1959 to 1962.
He was selected by the Minnesota Vikings in the 13th round (171st overall pick) of the 1963 NFL draft. He played professional football for the Minnesota Vikings (1963âÂÂ1964), New York Giants (1965), and St. Louis Cardinals (1966âÂÂ1967). He appeared in a total of 60 NFL games.