Madadman wrote:

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Jay has posted this on his Instagram this afternoon.

UPDATE
Hi everyone,
I have been struggling with a great deal of pain for
sometime now on and off for about 5 years in my wrist
which has unfortunately gotten worse and started to
impact how I live my day to day life away from tennis.
Along with guidance from my family, sponsors, coaching
team and surgeons I have decided to undergo an
operation to hopefully fix the issue permanently ! This is
a decision that I tried to postpone for a long long time
but recently it's been too much to allow me to compete
at the level where I belong. I will miss the next few
months but i'm confident that this will be a catalyst when
looking back in a few years.
Thanks for reading
J

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I sincerely hope it all works out well for him.