Michael Bisping has permanent eye damage from his knockout loss to TRT taking Vitor Belfort. The difference between TRT Vitor and non-TRT Vitor is remarkable when you look at the difference in his body shape. Bisping has never forgiven Belfort for his ‘cheating’ and feels satisfied after watching said ‘cheat’ get knocked out.
https://www.youtube.com/watch?v=e6YeoJwSh8Y