On the final day of the IAAF World Championships in London, we were joined by a very special guest.

Kelly Sotherton, a proud owner of three Olympic bronze medals, joined Dan Quarrell and Ben Snowball live on the Eurosport Facebook page to take our challenges and answer your questions.

Kelly took on the now famous ‘Wheel of Bolt'(!) as she reviews a controversial and dramatic World Championships at the Olympic Stadium.

And in light of Mr Bolt’s disastrous last ever race, we asked which legendary figure should come out of retirement: the Jamaican, Francesco Totti, Michael Phelps or Kobe Bryant?