There’s been a lot of chatter ever since Twitter and Tesla kingpin Elon Musk and Facebook CEO Mark Zuckerberg challenged each other to a cage fight. Even former UFC champion Dominick Cruz has jumped into the fray, saying he would jump at the chance to train Musk for a bout with Zuckerberg. “Everybody has fight in them and these two guys ready to match up proves it,” Cruz said in an interview with TMZ Sports, noting that Musk and Zuckerberg wanting to compete in the cage was a “healthy” thing for the them to do.