A Hail Mary pass in American football originally refers to the winning pass in the 1975 NFL game between the Dallas Cowboys and Minnesota Vikings. Cowboys quarterback Roger Staubach was asked about the play afterwards and said, “You mean Pearson caught the ball and ran in for the touchdown? It was just a Hail Mary pass; a very, very lucky play.” Staubach told reporters that he closed his eyes, threw the ball as hard as he could, and said a Hail Mary prayer.
From Wikipedia. You better believe it was La Virgen.