Video: Who wins the battle of strength between Irish rugby stars Conor Murray and Jamie Heaslip?
Ireland international colleagues Jamie Heaslip and Conor Murray took on the Maxi Nutrition challenge to see who is the "stronger" athlete and it was a closely fought affair
The pair who will be central to Ireland's challenge at the World Cup, battled it out for bragging rights in the strength competition that included Swiss ball passing, hanging challenge, planking, dumbbell holds and press ups.
Watch below as Jamie Heaslip claims victory in the planking challenge.
Did the Leinster captain take the overall victory, or did the Munster scrum-half emerge victorious?
Find out in the final challenge below.