Kingston JAM - World 100m record holder Asafa Powell and Olympic 200m champion Veronica Campbell head Jamaica's team announced on Wednesday for the 11th IAAF World Championships in Osaka, Japan.

Powell who has a season best of 9.90 seconds and Campbell, who ran season best times of 10.89 and 22.39 to win at the National Championships in June, are Jamaica's best hopes for gold medals in Osaka.

Meanwhile, Sherone Simpson who was the fastest woman in 2006 and Brigitte Foster-Hylton, who won silver and bronze at the last two Championships in 2003 and 2005 respectively, were left off the squad released on Wednesday.

Both are given until August 13 to prove their fitness ahead of the IAAF deadline date for entries.

In a release, the JAAA stated: "The JAAA wishes to announce that a decision will be taken regarding Miss Sherone Simpson and Mrs Brigitte Foster-Hylton according to our rules by August 13, 2007 the deadline to submit final entries to the IAAF."

Under the JAAA's rule: "Athletes with top three World ranking who are ill or injured at the time of the National Championships may still be considered for selection, but they must prove their World ranking form prior to the final submission of the entries for the competition."

Since the National Championships, in two races, Simpson struggled to 11.75 in Monaco and 11.61 on Tuesday in Stockholm, finishing eighth on both occasions.

Foster-Hylton, on the other hand, has not run since May 5 where she finished first at the Jamaica International Invitational in 12.71 seconds.

The team:

Men

Marvin Anderson, Sanjay Ayre, James Beckford, Michael Blackwood, Usain Bolt, Clement Campbell, Nesta Carter, Ricardo Chambers, Allodin Fothergill, Leford Green, Dean Griffiths, Danny McFarlane, Jason Morgan, Steve Mullings, Isa Phillips, Asafa Powell, Dorian Scott, Maurice Smith, Dwight Thomas, Maurice Wignall and Christopher Williams

Women

Aleen Bailey, Sheri-Ann Brooks, Veronica Campbell, Vonette Dixon, Delloreen Ennis-London, Simone Facey, Shelly-Ann Fraser, Lacena Golding-Clarke, Elva Goulbourne, Korene Hinds, Madrea Hyman, Anastasia Le-Roy, Shereefa Lloyd, Davita Prendergast, Kenia Sinclair, Ronetta Smith, Kaliese Spencer, Kerron Stewart, Shevon Stoddart, Melaine Walker, Novlene Williams, Shericka Williams, and Nickiesha Wilson

Management

Ludlow Watts (manager); Alfred Francis and Grace Jackson (assistant managers); Donald Quarrie (team leader); Glen Mills (head coach); Raymond Graham, Fitz Coleman, Michael Clarke, Bert Cameron, Maurice Wilson and Orville Byfield (coaches); Dr. Herb Elliott and Dr. Glenton Smith (doctors); Maureen Spence-Campbell, Angella McIntosh (physiotherapists); Cathy Rattray-Williams (team media liaison)