Live Chat: Jon Jones's future, Mayweather vs. McGregor fight week and more

This is the Promotional Malpractice Live Chat.
Today on the program, the topics are fairly obvious. First and perhaps foremost, UFC light heavyweight champion Jon Jones is facing more career turmoil as he's failed another in-competition USADA drug test. We don't yet know precisely for what or what this all could mean, but it's not out of the question to write off the rest of his career. This is major, major news.
Then there's Mayweather vs. McGregor fight week, which has finally launched. McGreg