It took awhile but I got referred to Under Armour t-shirts that really help to keep loose stomach from interfering with exercise and tennis. It helps to shape the body. It is a bit expensive at $28 shirt but I have been wearing them for a few days and really helped me mentally as it shapes the body and gives good form to wearing clothes. I notice there is an advertisement for women's shape wear but nothing for the guys, so I thought I would post this.

actually i found this site www.classicshapewear.com and they sell really good man shapewear options, i bought this http://www.classicshapewear.com/leonisa-upper-body-full-compression-mens-shaper-035000-p-2278.html and it makes my abdomen look flatter and shapes my bosy, also allows me move and do everything i want without feeling uncomfortable, you should check out, i totally recommend this piece as it has worked great for me.