Tennis: Novak Djokovic starts his title challenge in the 2nd round of Dubai Championships.

Novak Djokovic proceeds with his quest for more flatware in the second round of the Dubai Championships. 

The world No 1 is playing in his first competition since winning the Australian Open and confronts Tunisian adversary Malek Jaziri in the second round as he looks for a fifth Dubai title. 

Djokovic overwhelmed Tommy Robredo 6-1 6-2 in his opening match and will be seeking after another agreeable win over world No 121 Malek Jaziri. 

Second seed Stan Wawrinka was compelled to work for his place in the second round, doing combating past Sergiy Stakhovsky 5-7 6-3 7-5. 

The Swiss player comes back to activity against Croatian qualifier Franko Skugor. 

Third seed Tomas Berdych will tackle Italian Thomas Fabbiano, as the fourth-seeded Roberto Bautista Agut begins the day's calendar against Hyeon Chung.