After a sub-par showing on last, reigning World 200m champion Shericka Jackson will definitely be hoping to make the Stockholm Diamond League meet a memorable one on Sunday.

The 29 year-old Jamaican sprinter has gone faster than anyone over 200m except 1988 Olympic champion Florence Griffith Joyner.

However, a fifth place at the Oslo Diamond League on Thursday raised questions about Jackson’s fitness ahead of this Summer’s Paris Olympic Games. Still, Jackson is as determined as athletes come and she will no doubt look to assuage concerns with a speedy time in Stockholm.

On the other hand, American Brittany Brown will look to rattle her confidence once more. Brown scored an upset victory with a time of 22.32 seconds in Oslo. The result has vaulted the American sprinter into the Olympic selection conversation ahead of their Olympic Team Trials in late June.

Brown is slated to run both the 100m and 200m in Stockholm. Gambia’s Gina Bass, Cote d’Ivoire’s Marie-Josee Ta Lou-Smith and Jamaica’s Natasha Morrison will also line up in the 100m, while Jackson and fellow Americans Anavia Battle and Jenna Prandini will be Brown’s biggest rivals in the 200m.

Jamaica’s Ryiem Forde Forde will have his hands full in the men’s 100m, as he faces Japanese Hakim Sani Brown, the runner-up in Oslo, Emmanuel Eseme of Cameroon, and American Kyree King.

Rushell Clayton's rich vein of form to be tested by Femke Bol.

Another highly anticipated women’s track event is the 400m hurdles, where in-form Jamaican Rushell Clayton will lock horns with Dutch world champion Femke Bol, who will make her season debut in the event at Stockholm’s Olympic stadium.

Clayton has grown from strength to strength since copping bronze at last year’s World Championships. She secured victories in Oslo on Thursday, and prior to that, won in Rabat, as well as at the Jamaica Athletics Invitational Meet, where she clocked a season’s best 53.72s. She will again be joined by compatriots Andrenette Knight and Janieve Russell, who were a part of the Jamaican sweep of the podium at the in Oslo, with World champion Bol now joining the party.

World Championships silver medallist Kyron McMaster of the British Virgin Islands is expected to be one of the toughest rivals for Alison Dos Santos of Brazil in the men’s 400m hurdles.

But McMaster will have much to do, as Dos Santos has been holding superb form and is undefeated in the event. Dos Santos has won both of his races on the Diamond League circuit this year in impressive times, the most recent being a season’s best 46.63s-clocking in Oslo.

Meanwhile, the women’s triple jump seems headed to be a Caribbean affair with world indoor champion Thea Lafond of Dominica, two-time World Championships silver medallist Shanieka Ricketts of Jamaica, and world indoor silver medallist, Leyanis Perez Hernandez of Cuba again set to battle for the podium spots. Another Jamaican Kimberley Williams will be aiming to improve on her recent performances.

Elsewhere in the field, Fedrick Dacres and Danniel Thomas-Dodd will also be hoping to improve their form in the men’s discus and women’s shot put respectively.