Jamaica’s World Championships 100m hurdles gold medallist Danielle Williams has put pen to paper and is confirmed for the Jamaica International Invitational, an IAAF World Challenge set for Saturday, May 7.

Williams, who shocked the track and field world when she won the gold medal in a personal best 12.57 seconds, is yet to win the event here, with her best finish coming last year when she was second to American Jamine Stowers, who is also down to take part.

Dawn Harper Nelson, the winner in 2013 and the number one ranked female sprint hurdler last year, was also confirmed by the meet organisers this past weekend, along with Daniel’s older sister Shermaine. They will join World Championships finalists Brianna Rollins and Sharika Nelvis, who were earlier confirmed.

Meanwhile, quarter-milers, American World Championships and Olympic Games gold medallist Sanya Richards-Ross and Jamaica’s Javon Francis have also been confirmed, along with men’s 400m hurdlers Bershawn Jackson and Michael Tinsley.

Jamaican-born Richards-Ross, who will be defending the title she won last year, will face a tough field that will include all four members of the Jamaican 4x400m team that won the gold medal at the World Championships last year, led by bronze medallist Shericka Jackson and including former winners Novlene Williams-Mills and Stephenie-Ann McPherson, as well as Christine Day.

American Francena McCorory, the winner in 2014 and the runner who was overhauled on the anchor leg of the relay in Beijing by Williams-Mills, was earlier confirmed.

Francis, who anchored Jamaica to a silver medal in the 2013 World Championships in Moscow, Russia, joins national record holder Rusheen McDonald in what could be an early test for both men with the Olympic trials coming up later in the year.

American Bershawn Jackson — who has a long history of success in Kingston going back to the 2002 IAAF World Junior Championships when he won the bronze medal — will be back to defend his 400m hurdles title.

His compatriot Tinsley has also been confirmed, and they will join The Bahamas’ World Championships bronze medallist Jeffrey Gibson.

Also confirmed last weekend were female long jumper Shara Proctor — bronze medallist in Beijing last year — and American sprinter English Gardner.

Earlier, world and Olympic champion Shelly Ann Fraser-Pryce, World Championships 200m silver medallist Elaine Thompson — who also added a World Indoor 60m bronze last month — Commonwealth Games 200m champion Rasheed Dwyer, Canadian sprint sensation Andre De Grasse, former world record holder Asafa Powell, American sprinters Mike Rogers and Ryan Bailey, Pan-American Women’s 100m champion Sherone Simpson, sprint hurdlers Andrew Riley of Jamaica and Americans Jeff Porter and Aleec Harris, had all confirmed their participation.