wrist pain with new racket

A difference in weight or weight distribution in the racquets? Perhaps the MP99 is heavier or head-heavier. If you're not accustomed to the extra weight or shift in weight balance, it could possibly add strain on your wrists. And are the grips the same size? That might affect your swing as well and thus could have affects on your wrist as well.

 

I noticed this when switching to another racquet (Much stiffer than current one) and adding more tension then I would usually use. I think you're just getting used to the stiffness and possibly the tension. Try stretching your wrist before games and in between.

 

You can definitely try strenghtening your wrist to prevent injuries since the more developed the muscle is, it lowers your chance of being injured incomparison with before.

 

Wrist injuries are not to solely caused by your choice of racket. Well not those rackets at least. Wrist injuries are caused by rackets like the Ti-10 with a head heavy balance. I know this from personal experience.

Its also caused by non-stop vigorous play, esp in doubles where u do alot of wrist flicking.

If u feel any pain in your wrist, take a rest and if it persists, go see a physio. Because i sat around for about a month and a half to "rest". And it didn't heal at all, so i had to go see a physio and it still hasn't fully healed till today.

Strengthening is a good idea but not when your wrist is already injured. You'll just damage it even more...

 

Maybye you should change to a lower string tension for a while.