Hall of Famer blasts Margaret Court's comments as "sick and dangerous."
Australian Open champ plans major return after giving birth.
Losing match point triggered the ultimate break point.
The 36-year-old celebrated a recent win with an impromptu duet.
Hall of Famer doubles down on controversy; Murray, Muguruza answer back.
Steve Johnson and his heavy heart are moving on in Paris
Former No. 1 calls email apology "useless."
