They are the only National Football League team to have gone undefeated or untied all season since the National and the American Football Leagues merged in 1970.

Members of the Miami Dolphins, whose undefeated 1972 season culminated in a Super Bowl victory in January, 1973, stood smiling behind President Obama on Tuesday, blinking in the TV lights and basking in the applause of the crowd and the praise of the First Sports Fan.

"In 1972, these guys were a juggernaut," the president said, ticking off their accomplishments: a perfect 17-0 record that included a misleadingly close 14-7 thrashing of the Washington Redskins in the title game, leading the league in offense and defense, and fielding seven future football Hall of Famers.

Do you ever see this Sports record being tied?