The only other option that would make sense for him is Oezdemir (injured / already booked), or a comeback fight for Rumble. (sbnation.com)
Seriously, how many fighters say they're retired, then always have a «comeback fight» or something of the sort. (sbnation.com)
The UFC looked bad, because it had exempted Lesnar of four months of drug testing prior to his comeback fight, exercising a loophole in its anti-doping policy. (sbnation.com)