This one’s for the runners out there, or endurance sport lovers.I chop it up with my good friend and one of the best Triathletes in the world, Grant Sheldon.Grant was part of team GB, ran for Scotland and has competed all over the world where he reached 4th in the world at the pinnacle of his career.But marathon running, swimming or cycling comes with some painful battles in the hurt locker and I’ve got the ultimate guest for you to explain this.Did you watch the episode with Anthony Joshua's...