Jon Jones is opening up on his physical health after a conversation, intended to be private, went viral ... where the UFC legend said his hip was screwed up so bad that he needs a replacement. "Looks like a private conversation I had at DBX 5 in Houston made its way out into the wild," Jones told TMZ Sports . "It happens. Like most fighters, we deal with injuries quietly sometimes and like in my case, for years. A lot of us walk around limping most days, paying the ultimate price for our health.