Growing up without a dad and not having a father figure - I noticed a hole in my life. For the longest time, I would run away from my problems instead of confronting them. I felt empty at one point. Not depressed, but empty.

Spanish is actually my first language, growing up, and I understand the culture. I understand the culture; I understand what the people want.

I always wanted to become a student of the game and at least get six to eight fights before coming to the UFC.

The medal just was an object, just a medal, and that's it. What really meant something was the blood, the sweat, the tears that went into getting that medal. I'll always have the memories of that with me.

I'm not really happy with my football career, but I can't complain about it, either.

I knew I was a world champion and a top contender at the highest level for over a decade, but I think I'll be remembered as somebody that was an ambassador for the sport, someone who helped build something bigger than myself, and also for the team I've been able to build.

I am much more of a geek than I am an athlete.

I can't say this enough - the food that you put into your bodies can actually help you get better grades. And it can also affect your performance in sports and other activities too. You see, when you give your body the best possible fuel, you have more energy, you're stronger, you think more quickly.