Over the next five days the two star players - well, some of their biggest fans dressed up as their heroes! - will take part in challenges to see who will have bragging rights come game time this Saturday afternoon!
Day one sees Halfpenny and Wilkinson step onto the turf at the Arms Park for a crossbar challenge! Click HERE to watch all the action unfold!
Every day this week a new challenge will take place around Cardiff... so keep visiting our youtube channel to watch!
Want to see Halfpenny and Wilkinson in action this Saturday at the Arms Park? Tickets are selling fast so don't delay! Call the Ticket Office on 02920 302030 or click HERE to buy online!