Any "opportunity" would involve me travelling ten years back in time, being introduced to the sport of MMA around then, having the drive to be more than mediocre at the various sports I played, then not becoming a rave promoter and computer technician and a drinker through my twenties.
Given all those factors, I do believe I would. I played tons of sports through highschool and I had plenty of natural talent. That alone is not nearly enough to achieve high level of success in pretty much anything, though. You have to have the opportunity, and then the mindset to put in the work to reach your goal, and despite my whole family being athletic I only did most sports because my dad wanted me to.
Everybody good, plenty of slaves for my robot colony?