Background
Yousif is the son of Mohamed Yousif Bakhit, who was Sudanese national champion in the 100 and 200 metres in the late 1960s and early 1970s.
Yousif is the son of Mohamed Yousif Bakhit, who was Sudanese national champion in the 100 and 200 metres in the late 1960s and early 1970s.
There were also three other athletes within his close family, and he took to sports at a young age. At the age of 14, while training for the Championships with other Sudanese athletes in Sheffield, in the United Kingdom, he applied for asylum, and was granted temporary leave to stay. However his asylum application was declined due to lies he had initially told about his age having pretended he was an adult rather than a child.
In 2005, it was reported that Yusif was seeking British citizenship.
After being finally granted British citizenship in 2013 Yousif switched his alliance to Britain and became a full-time professional athlete. In June 2002, he competed at the East Africa Youth Championships in Zanzibar and the Eastern African Junior Championships in Addis Ababa, winning a total of two gold medals in the high jump and one in the long jump.
This qualified him for the World Junior Championships in Kingston, Jamaica. He finished third in the men"s 400 metres event at the American Automobile Association Championships in 2005.
He set a new record (4572 seconds) at the 400 metres event of the Bedford International Games in 2007.
He did not qualify for the Olympic Games. The 2009 World Championships in Athletics in Berlin were his first major world competition. He reached the semi-finals, with the best result of any African athlete (4563).
In March 2012 he ran the 400 metres at the World Indoor Championships in Istanbul but didn"t qualify for the final.
Later his results from the championships were disqualified for doping, as he had tested positive for cannabis in a competition on 23 February. He received a 2-month backdated suspension for the anti-doping rule violation.
He qualified to join the Sudanese delegation at the 2012 Summer Olympics, and took part in the men"s 400 metres. He reached the semi-finals, where he set a new personal best in 45.13.
In May 2013, he announced that he now had been granted a British passport, and aimed henceforth to represent Great Britain in future athletics events.
His transfer of allegiance, allowing him to represent his new country, was completed by the following month. In the 2015 World Championships Yousif ran a new personal best of 44.54 in the semi final of the 400m to qualify for the final of the event.
In 2007, he was described as "one of Britain"s brightest hopes for an Olympic medal", but a judge turned down his asylum plea, and he faced deportation. Guided by his British coach, Carol Williams, he switched from the high jump to the 400 metres, and won the British national junior championships in June 2004. He won the event again in 2008, with a time of 47.05 seconds. In April 2008, despite an injury during training, he competed at the 2008 African Championships, and won a silver medal in the 4 × 400 m relay, setting a new national record of 3:04.00 with his teammates. That same year, he won gold at the Arab Championships in Damascus, with a new personal best of 45.15. He won gold again at the All Africa Games and the Arab Championships in 2011.
