By Jeorge Bird For Mailonline
Published: 23:43 GMT, 1 February 2019 | Updated: 23:44 GMT, 1 February 2019
Unified world heavyweight champion Anthony Joshua pushed himself to the limit with a jaw-dropping workout.
Joshua, remarkably, trained his jaw with a 20kg weight. It was a grueling exercise for the 29-year-old but he managed to endure it.
Following that, Joshua then turned his attention to doing lunges as he sought to ensure that he is in the best possible shape.
Unified world heavyweight champion Anthony Joshua was involved in an intense workout
Joshua lifted a 20kg weight with his jaw as he pushed himself to the limit
The 29-year-old showed remarkable endurance as