890018 280 preview?ITEM ENT ID890018&ampITEM VERSION1&ampCOLLSPEC ENT ID10&ampFILE SERVICE CONF ID280 - Djokovic seals final spot in London
Novak Djokovic fought back from a set down to defeat Juan Martin Del Potro and reach the final of the Barclays ATP World Tour Finals in London.
The world number one had looked in trouble when he went a break down in the second but Del Potro won only three of the last 14 games as Djokovic triumphed 4-6 6-3 6-2.