Novak wary of dandy Andy

Djokovic's No 1 ranking under siege by Murray

Novak Djokovic heads into this week's Paris Masters with his No 1 ranking under serious threat from Andy Murray.

Djokovic is looking to win the tournament for the fourth straight year and fifth time overall. But he has been in erratic form over the past few months and is not playing with the confidence he showed here last year, when he crushed Murray 6-2, 6-4 in the final.