Washington D.C., Nov. 9 -- : Seems like the legal tussle between ex-couple Johnny Depp and Amber Heard has deepened further as the latter has requested the former to undergo a mental health assessment.

According to new court documents obtained by The Blast, cited by Page Six, Heard has asked her ex-husband to allow a mental health professional to run an Independent Mental Evaluation (IME) on him.

Heard has taken this step as she believes that Johnny's alleged drug, alcohol and prescription med usage contributed to the abuse alleged by her earlier.

"Johnny's relationship with reality oscillates, depending upon his interaction with alcohol and drugs. As Johnny's paranoia, delusions and aggression increased throughout our relationship, so h...