A lot of the time if the internet knows it gets to you, they’ll go even harder. I haven’t ever heard of an athlete committing suicide over criticism. I think they are wired differently to the average joe blow. They have to be.
Maybe not over a specific criticism but considering it's pretty easy to come up with names of even just league players that have ended their own lives - Peter Jackson, Mosese, Francis Winterstein, Chad Robinson. There was that young fellow from the Raiders a year or two ago.
Many footballers are wired differently and many are not. Many learn to ignore or accept or even revel in the negative feedback, but I think the main issue is how much younger and inexperienced first-grade players are in the modern game. And how many players don't make the transition from talent to career, and how many of those don't have the life skills to find another path. Hence the Men Of League.
Is there a correlation though between their deaths and criticism they received? Peter Jackson suffered from manic depression and committed suicide after he had retired. Mosese, it’s been established felt guilt over fearing he might not be able to provide for his family due to an injury. Not saying players are immuned from suicidal thoughts, but they don’t react as emotionally as supporters do to what is said online. There’s never been a suicide, or even an attempt of suicide or just thoughts of suicide due to an athlete being criticised by the public.
You simply do not know that! Everyone is different, even athletes.