As long as I'm in great shape, nobody beats me, for sure.

I don't think limits.

Rihanna, Beyonce and Nicki Minaj - we may not win, but we would have a lot of fun [in 4x400m relay team].

A few people have said I should let you win

I have to move on now as there is no point to dwell on the past. I have a few days to refocus and get ready for the 200 meters on Friday. After this I have the 4×100-meter and a few other races before the end of the season.

There's a lot of great Olympians, but for me, I try to prove myself as one of the best - and that's the key thing.

I can still improve a lot, but there is definitely a limit to what the human body can do.