The freakishly tall Taishan was marketed amazingly well, with the giant getting notable media coverage and TV time with Oscar De La Hoya stating that he wanted Taishan to become the Yao Ming of boxing. That attention, and hype, however was much more than his talent deserved, and that was clear almost from the off with Taishan showing littler natural ability as a boxer.
Taishan fought all 6 of his professional bouts in the US, with the final one of them coming last December when he over-came Daniel Arambula in a really poor bout, and has been inactive throughout 2016.
The Chinese sources report that Taishan will be free from his Golden Boy contract in November. It'll be hard to see where he goes from here but he could well return to kick boxing, where he scored a notable win over Bob Sapp before turning to boxing.
Whilst Taishan should be considered a "bust", given the hype and marketing he was given, he could also be considered the perfect example of how not to promote a fighter. It was clear that De La Hoya had seen something marketable in Taishan's unique size and look, but he failed to have any of the talent necessary to go far in the sport. He lacked boxing IQ, speed, power and pretty much every thing needed to be a boxer. His failure to become a star should serve as a cold reminder to promoters, that too much hype can force a fighters career to fail before it even gets going and that seems to have been the case here.
Interestingly the same sources also report that Dong will spend the next few weeks training along side Zhou Zhipeng ahead of his November fight with Korean giant Choi Hong Man.