Earlier this month, San Francisco 49ers coach Jim Harbaugh stumped for inside linebacker NaVorro Bowman to be a candidate for the NFL's defensive player of the year award.Now, Bowman has a signature moment to help his candidacy.Bowman, a tackling machine who has been one of the most consistent defensive players in the league, made one of the most memorable plays of the season to seal the 49ers' playoff berth in a 34-24 win over Atlanta.He caught a tipped ball by San Francisco cornerback Tramaine Brock and took it 89 yards for a touchdown to seal the game with 1:10 to go.