Unique rowing showdown pitches Drysdale versus Manson

New Zealand rowers Robbie Manson and Mahe Drysdale go head-to-head at the World Cup regatta in Lucerne this weekend. The winner will gain a place in the New Zealand team for the World Championships in September. The unique situation came about after Olympic champion Drysdale decided he wasn't about to give up his single sculls seat and Rowing New Zealand decided they'd give him the opportunity to continue at the top level. Barry Guy reports.