think it looks good for the rest of the season for Asafa," he lamented. Powell was not able to compete for Jamaica in the men's 4 × 100 m relay on 10 August. Powell released an apparel and accessories line branded "Sub 10 King" and many others, also opening up his personal website www.iamasafa.com for people's viewing and a platform to purchase his products. 2013-14 Suspension & Appeal On 14 July 2013 Powell announced he had had tested positive for the banned drug oxilofrine in 2013 and withdrew from the 2013 World Athletics Championships as a result, but maintained that he did not take any banned supplements knowingly or willfully. Powell and fellow Jamaican sprinter, Sherone Simpson had taken the supplement Ephiphany D1 as part of their training regimen, not knowing it contained oxilofrine. It was later revealed that Acacia was substituted with oxilofrine, and not revealed by the manufacturer. The duo sued the company that sold the supplement, Dynamic Life Nutrition (DLN), in order to clear their names. Both Powell and Simpson reached an out of court settlement for an undisclosed amount in September 2015. After the settlement, Simpson released a statement stating: "Both Asafa and I are happy that we were able to settle this out of court." In April 2014, the Jamaica Anti-Doping Commission suspended him for 18 months over doping charges, expiring in December that year. However, after he and Simpson appealed to the Court of Arbitration for Sport (CAS), the suspensions were reduced to the 6 months already served as CAS accepted the explanation that the offense was minor and due to contamination of the Epiphany D1 supplement. 2016 Rio Olympics On 19 August 2016, Powell made a triumphant Olympic return, competing as part of the Jamaican 4 × 100 m men's relay team and winning a gold medal. After Jamaican team gold medal in 2008 Olympics were stripped, this medal win will be his only gold medal at Olympic Games. Physiology and running style Despite Powell's size ( tall, weighing ), he has fast initial acceleration. In the Japanese sports Science institute in 2008, Asafa Powell was measured to have a small cross sectional area of his quadriceps tendon stretched with 114 kilograms of pull force, compared to sprinter Nobuharu Asahara's measurement of 59 kilograms, and the average mans as being 43 kilograms. Powell was also noted as having a large Psoas major muscle