Novak Djokovic defeats fellow countryman Laslo Djere

The Serb is gunning for a record-breaking win in New York. 

Novak Djokovic is through to the third round of the US Open (rank Franklin II/AP)

Novak Djokovic got some valuable miles in the tank as he continued his pursuit of a record-breaking 25th grand slam title at the US Open.

The Serbian is looking to move clear of Margaret Court in the all-time list but arrived in New York having not played a hard court match since March.