You have good days and bad days.

I don't even like to go out onto the streets sometimes because I can't get anything done. People want pictures and autographs all the time.

If you think about racing too much you may just lose it a little bit.

But anybody who steps into the lane beside you is the biggest competition because they made it to the finals.

I can't watch a [Floyd] Mayweather fight. I don't find it exciting. I used to watch boxing in the [Michael] Tyson era when it was exciting. Now it's all bob and weave, a punch here and there. It is not entertaining.

I don't have a clue. These things don't bother me. I think about the technical stuff but not how many steps or what my heart rate is.

You do not want to get married at 22! Especially if you're famous, because girls are going to be throwing themselves at you.