Ahead of UFC on ESPN: Font vs. Aldo, UFC lightweight Brad Riddell speaks to Submission Radio about his upcoming fight against Rafael Fiziev, their friendship, sparring and training history, the phone call he made to Fiziev before signing the contract, why Islam Makhachev may be champion and how he's been prepping for him over the last two years, Michael Chandler's loss, why Khabib had the right retirement and career gameplan, Dan Hooker moving down to featherweight, the current situation in New Zealand and why CKB is no longer moving to the US or Australia, and more!