Strickland admitted that he has psychological problems

Sean Strickland, UFC middleweight champion, spoke about his psychological difficulties.

“Post-traumatic stress disorder can make a strong person weak and a weak person strong. Years and years of abuse simply change you as a man. Hatred doesn't just go away. The sad truth is that I am one of millions, but they only talk about me because there is a camera in my face... Most people just suffer in silence and drown their demons in alcohol or drugs.”