In-form US sprinter Melissa Jefferson-Wooden will return home to fine-tune final touches before heading to the world championships in Tokyo as the big favourite for a sprint double.

The 24-year-old wrapped up her European swing of the Diamond League circuit with a 100m victory in Brussels in 10.76 seconds over a loaded field including reigning world champion Sha'Carri Richardson and Jamaican legend Shelly-Ann Fraser-Pryce.

That win came hot on the heels of an impressive victory at last week's Silesia meet in 10.66sec. It was just one-hundredth of a second off her personal best that makes her the joint fifth-fastest woman in history.

"I feel great," she said after her Brussels triumph, taking her to eight straight wins this season in the blue riband event.

"It was a little cool out ther

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