Daniel Cormier fires back at Jon Jones, tells him 'to grow up'

It didn't take long for UFC light heavyweight champion Daniel Cormier and former UFC light heavyweight champion Jon Jones to start exchanging shots on Twitter.
Jones started the conversation off with this Tweet on Monday night.Take as much time as you want, the fire inside of me won't be dying down anytime soon. #AndStill
— Jon Bones Jones (@JonnyBones) October 20, 2015Cormier responded two hours later, showing off his quality hash tag game once again.I will take my time. I've been fightin