World record holder Asafa Powell will line up in the 100m heats, the self-described "fastest man on earth" starting a campaign for his first gold medal at a major multi-sport international meet.
"Everyone is looking for me to bring a gold back home, and a lot of people in other places are expecting me to win," Powell said.
The 23-year-old Powell is entering his first major international competition since he set the world record last June, clocking 9.77 at Athens to shave 0.01 off Tim Montgomery's previous mark.
He missed the 2005 world champions with an injured groin.
Defending champion Kim Collins is out, but there are eight men in the field with sub-10-second personal bests.
"I'm a little bit anxious, it's my first real competition since the injury," said Powell. "I still have a little fear -- but it's only a mind thing."
Trinidad and Tobago's Marc Burns ran 10-flat to win the World Athletics Final last December, edging Ghana's Aziz Zakari by 0.01.
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