Dayron Robles — American Athlete born on November 19, 1986,

Dayron Robles is a Cuban track and field athlete who specialises in the 110 metre hurdles... (wikipedia)

I am my own main rival.
When I'm in good form there are chances that rivals will worry more about you more than you about them.
I am very fired up to run in New York.
I'm looking to get in the best shape possible for London and not worrying about rivals.
I'm continuing to prepare very well because I have my responsibility and my (pride) as a man and an athlete.