 CBS Sports affiliate, The NFL Draft Scout, ranked Johnson 16th among 123 rated quarterbacks available for the 2009 NFL Draft and projected him as an undrafted free agent.As expected, Johnson was not selected by an NFL team, but he was invited to participate in the Green Bay Packers mini-camp on April 30, 2009 alongside former Utah quarterback Brian Johnson.David Johnson said, "All I've ever wanted was an opportunity, and they gave me an opportunity to try out."