From Corey Webster's Wiki:

In Super Bowl XLII, Webster provided a huge performance through the first three quarters. Unfortunately, on the go-ahead Patriots scoring drive, he fell down, which allowed New England Patriots receiver Randy Moss to score an easy touchdown on a key third down play, putting the Patriots up 14-10 with less than three minutes to go in the game. But, he came back to deflect a pass from Tom Brady to Randy Moss on the next drive to prevent the Patriots from scoring, and all but securing the Super Bowl victory.
They make it seem like he was such an awesome hero. It shatters my faith in wikipedia.