Roger Black on edge of his seat as Mo Farah competes

Former Olympic sprinter Roger Black was on the edge of his seat as he watched Mo Farah competing in the Men's 5,000m final at the IAAF World Championships:

Read: Mo Farah wins second gold

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Team GB disqualified from relay

British and Northern Irish athletes have been disqualified from the 4x100m final after initially claiming bronze at the World Athletics Championships in Moscow.