The 57-year-old Hall-of-Famer's demand came in a series of tweets which lambasted Russian legend Ovechkin for comments regarding the Ukraine crisis on Friday.
Kyrgios is the latest in a series of high-profile athletes to speak publicly about their mental health, a group that includes fellow tennis star Naomi ...
Former heavyweight champion Wladimir Klitschko enlisted in Ukraine's reserve army earlier this month, saying that the love for his country compelled him to defend it.