And for his encore? Well, fresh from his fourth straight world 1,500 metres title win in Paris earlier this week, the peerless Moroccan will tonight line up in the 5,000m heats, ready to launch his quest for a golden double which hasn’t been achieved at any global athletics championship since Paavo Nurmi, of Finland, won both events in this city at the Chariots of Fire Olympics 79 years ago.