Boris Johnson was on the startling line with Mo Farah but his focus seemed to be on another rival.
The Mayor was doing his bit for keeping the Olympic spirit alive, backing a report which warns despite such a fantastic year of sport, fewer people are actually getting active.
He was at a school in south London earlier, the day after being invited to lunch by the Prime Minister. But is the truce between the two rivals already over? Our Political Correspondent Simon Harris on why Boris Johnson is set to attack the Government once again.
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A lamp in the tower which houses Big Ben is to be switched off for the first time in more than 70 years.
Sir Bruce entertained audiences for more than seven decades.
Work in the tower will also pause over the bank holiday weekend.