Republic of Ireland international winger Keith Treacy fired npower Championship side Preston into the Carling Cup third round with a superb winner in a 2-1 extra-time success at Valley Parade.
The move began when Treacy saw his angled shot from the left hit the Bradford crossbar.
When the home side failed to clear the danger substitute Darel Russell turned the ball into the path of Treacy and he fired into the net with a 25-yard left-footed shot.
The goal came in the 109th minute and Bradford could not fight back.
Bradford, who had knocked another Championship side, Nottingham Forest, out of the cup in the first round, fell behind a minute before half-time when Paul Coutts put Preston ahead with a 25-yard shot which sneaked in after goalkeeper Jon McLaughlin had twice denied Treacy.
However, the home side fought back after the interval and were rewarded with an 82nd-minute equaliser when left-back Luke O'Brien found substitute striker Jake Speight unmarked in the box, and the close-season signing from Mansfield headed the ball into the net to send the tie into extra-time.