Yeah, that is Sting.
TNA has Sting now. Kind of sad. Sting went downhill rapidly too. His last couple years in WCW he took to wearing that bodysuit that was like a tank top with full leggings. He had to cover up his gut and he had those football type pads on his thighs. You could look at his arms and tell he was falling apart too. He was rumored to be injured shortly (off the job doing something non wrestling related) after the NWO startup and that is why he took that year plus hiatus from the ring. The first 4-5 months it was actually someone else in the rafters but the camera never showed them close enough for you to tell the difference. He came back and lost a lot of in ring skills too. His Stinger Splash was nothing like it used to be.
Sad really that he threw McMahons offer for the WWE back in his face years ago and when he came looking for a job recently, Vince laughed him out of the office.