Justin Gatlin stormed his way to yet another Diamond League victory in Monaco at the weekend with a dominant 200 metre win.
The 32-year-old American powered clear of a strong field to finish in a time of 19.68 seconds - moving him to eighth on the all-time list of 200m runners.
Gatlin, who is a former world champion over the distance, has been in impressive form all year and now has the world-leads for both the 100 and 200m.
Among the athletes he beat was fellow American Tyson Gay. The 31-year-old, continuing his comeback after a drugs ban, could only finish fourth in a time of 20.22s.
Gatlin wasn't the only USA sprinter to impress on the night, though. Tori Bowie continued her excellent start to the season to win the women's 100m.
The 23-year-old is the current Diamond League leader in the event and showed why in the French Riviera with a world-lead time of 10.80 seconds.
The returning Veronica Campbell-Brown was second in 10.96s with Allyson Felix fifth, one place ahead of a disappointed Shelly-Ann Fraser-Pryce.
The Jamaican has struggled with a leg injury this season and will need to find form soon if she wants to win gold at the Commonwealth Games in Glasgow.
In the men's 110m hurdles there was a personal best and national record for in-form Pascal Martinot-Lagarde, as the Diamond League race leader took victory in a time of 12.95 seconds.
It was the Frenchman's fourth win of the series, and all-but seals the League title for the 22-year-old.
One athlete who couldn't continue his form from the previous race, however, was Kenya's 800m world record-holder David Rudisha.
The 25-year-old, who returned from injury to win in Glasgow last weekend, could only manage fifth place in a race won by Nigel Amos.