He is excellent standing and superb in takedowns, does anyone know if he a ground game?

this guy is good at that shan shou sport cause the rules are made for him i dont think he would do good in mma

The rules are made for him? Not exactly. San shou has been around longer than he has. To my understanding he has some sort of ground game. He fought in Shidokan a few times and was very successful.

He has said that he has no intrest in fighting NHB......

He did some sambo

Frank Shamrock has trained with Cung, and they're pretty good friends. Frank said Cung's ground game is pretty good, so I'll take his word for it.

Cung has dominated his division in San Shou for so long, that it's kind of getting boring. There's nobody really out there in his weight class that can touch him. It's too bad that he hasn't shown any interest in jumping into an MMA rules event because I think he'd do very well. His stand-up is very good and he's got pretty solid takedown skills.

Based on his last two performances, however, I'd say Cung's biggest weakness is his conditioning. If someone presses him enough, they'd have a shot to beat him.