The four-time Olympic champion, having won his third world 10,000m title eight days earlier, saw his hopes of an 11th global title and golden swansong shattered by Ethiopia's Muktar Edris in a typically thrilling finish. It's not an excuse, but it took a lot more out of me than I realised. "I gave it all, I didn't have a single bit left at the end".
Farah just couldn't keep up with them and he was grimacing as he fought off Paul Chelimo from the United States to make sure he took silver. Perhaps this was a step too far into greatness, even for an athlete like Farah. Although Australian Patrick Tiernan hit the front on the 3,000m mark and tried to stretch the field, ...
Mo Farah of Great Britain reacts after finishing second in the Men's 5000 Metres final.
Down the home straight all looked lost for Farah as he appeared blocked in until Kejelcha drifted out from the inside lane trying to block Chelimo, which allowed the Briton the chance to battle through on the inside.
Farah admitted after last Saturday's 10,00m victory that his quest for a double World Championship gold would be "tough" - and it showed as the 34-year-old struggled to assert his authority on tonight's race.
Australia's Sally Pearson celebrates winning the final of the women's 100m hurdles.
In his last track race Farah quickly went to the front of the race in order to keep the pace with the risky Chelimo. Farah will now move on to concentrate on marathon running.