John Ryder Successor to Tony Sims at Matchroom Elite Boxing Gym News John Ryder Successor to Tony Sims at Matchroom Elite Boxing Gym Caius Frostreaver June 10, 2024 Read about John Ryder's transformation from a retired boxer to the future head trainer at Matchroom Elite... Read More Read more about John Ryder Successor to Tony Sims at Matchroom Elite Boxing Gym
