Exercising after surgery

i have always been fairly active ....specifically competitive tennis and was wondering how long will it be before I can start playing again after gastric sleeve surgery? I also want to know what men are doing to keep looses skin to a minimum?

I was only allowed to walk for the first 6 weeks post-op, and then I was able to do anything.  Check with your surgeon for her restrictions.  

As for loose skin, it's one of those things that you'll get if you get.  There's no way to prevent it and the only way to fix it is with plastic surgery.