Sanya Richards-Ross:

The Jamaican born quarter-miler let off several warning shots in Kingston last week with a blistering world leading time of 49.95 for a powerful win. She looks to be in the mood here in Doha and who's going to be against her winning again and even lowering that time?

Justin Gatlin:

This will be his first 100m race of the season but we've seen enough to know that the American, who hasn't lost a race since September 2013 is already in great form.

Mo Farah:

He's been spending a lot of time watching football here and may wish to get off the track as fast as possible to rest up ahead of his Arsenal's big match this weekend against Manchester United. But a World indoor record in the 2 mile and a sub 1 hour time in the half marathon shows that the Brit is ready to delight in the 3000m here.

Jasmin Stowers:

12.40 and 12.39 in the 100m hurdles and we are only in early May! Sally Pearson, the Olympic champion says she can hardly wait to test the young American's credentials, so will Dawn Harper Nelson. This is her toughest test yet.

Diamond race winners - 2014

100m

Men - Justin Gatlin (USA)

Women - Veronica Campbell-Brown (JAM)

200m

Men - Alonso Edward (PAN)

Women - Allyson Felix (USA)

400m

Men - LaShawn Merritt (USA)

women - Novlene Williams-Mills (JAM)

800m

men - Nijel Amos (BOT)

women - Eunice Jepkoech Sum (KEN)

1500m

men - Silas Kiplagat (KEN)

women - Jennifer Simpson (USA)

5000m

Men - Caleb Ndiku (KEN)

Women - Mercy Cherono (KEN)

3000m

men - Jairus Birech (KEN)

women - Steeplechase Hiwot Ayalew (ETH)

110m hurdles/100m hurdles

Men - Pascal Martinot-Lagarde (FRA)

Women - Dawn Harper Nelson (USA)

400m hurdles

Men - Michael Tinsley (USA)

women - Kaliese Spencer (JAM)

High Jump

Men - Mutaz Essa Barshim (QAT)

Women - Maria Kuchina (RUS)

Pole Vault

Men - Renaud Lavillenie (FRA)

Women - Fabiana Murer (BRA)

Long Jump

Men - Godfrey Mokoena (RSA)

Women - Tianna Bartoletta (USA)

Triple Jump

Men - Christian Taylor (USA)

Women - Caterine Ibarguen (COL)

Shot Put

Men - Reese Hoffa (USA)

Women - Valerie Adams (NZL)

Discus

Men - Piotr Malachowski (POL)

Women - Sandra Perkovic (CRO)

Javelin

Men - Thomas Rohler (GER)

Women - Barbora Spotakova (CZE)