Mo Farah: Going the distance in London Reigning 5,000m and 10,000m world champion Mo Farah will lead Team GB at London 2017 – the four-time Olympic champion is expected to end his track career this season to focus on marathon running FARAH: AHEAD OF THE PACK Born: March 23, 1983Birthplace: Mogadishu, Somalia Early career: Arrives in England as refugee in 1993. Talent spotted and receives funding – wins first 5000m title at European Junior Championships in 2001 2007: Finishes sixth in 5000m at World Championships in Osaka 2008: Fails to progress through 5000m heats at Beijing Olympics 2011: Sets European 10,000m record. Breakthrough at World Championships in Daegu, becoming first British man to win gold in 5,000m 2012: Wins long-distance double at London Olympics. Claims 10,000m title on “Super Saturday” after golds for fellow Britons Jessica Ennis-Hill and Greg Rutherford, before roaring down home straight seven days later to win 5,000m 2013: Emulates Ethiopian greatKenenisa Bekele as only second man in history to achieve Olympic and World Championship “double-double” in long-distance events 2015: Repeats double gold medal triumph at World Championships in Beijing 2016: Accelerates to glory to retain both titles at Rio Olympics 2017: Aiming to extend nine-race winning streak in major competitions in London Source: Wire agencies Pictures: Getty Images