Jenneke asked to provide injury details Athletics Australia CEO Dallas O'Brien has sought answers from hurdler Michelle Jenneke after she missed a high-profile Sydney track meet through injury - only to race against a Top Gear sports car the next day. The glamorous 19-year-old was billed as a star attraction of the Sydney Track Classic at Olympic Park, having shot to worldwide fame with her sexy pre-race routine and an appearance on Sport's Illustrated's 2013 swimwear calendar. But she pulled out just before Saturday's race, citing a hamstring injury. Eyebrows were then raised as Jenneke appeared at the Top Gear Festival at Sydney Motorsport Park on Sunday - and ran against a high-powered Nissan GT-R driven by presenter Jeremy Clarkson. Footage of the race emerged on social media sites, including YouTube and Facebook. O'Brien spoke to Jenneke's representatives on Tuesday to discuss her withdrawal. She was asked to provide full details of her injury as part of a request for exemption from the Sydney Track Classic, which was a compulsory event for athletes hoping to compete at August's IAAF world championships. Jenneke could jeopardise selection for the blue-ribbon event in Moscow if she fails to win the exemption. "She has indicated to us that she will be forwarding to Athletics Australia details of her hamstring issue as part of a request for exemption to have to run at the Sydney Track Classic," an Athletics Australia spokesman told AAP. Jenneke's representatives have insisted the athlete was not running at full tilt when she raced Clarkson's Nissan over 100 metres at the Top Gear event. After initially taking the lead against the vehicle, she slipped behind and was beaten by about 30 metres. "Shelly (Michelle) participated in the Top Gear festival in Sydney and did do a short run - but it was only at 60-70 per cent capacity," her manager Damian Triffitt told AAP on Monday. While she has not done a major injury to the hamstring, it is strained and she is nursing the injury back to 100 per cent. Jenneke, from Kenthurst in Sydney's northwest outskirts, had posted a series of photos to Twitter and Instagram showing her lying down with an ice pack on her leg before Saturday's meet.