Djokovic stunned by epic success

Novak Djokovic kept alive his hopes of ending Roger Federer’s dominance at the US Open by edging past Radek Stepanek of the Czech Republic.

In an epic battle lasting four hours 44 minutes, the man who beat both Rafael Nadal and Federer en route to winning the ATP Masters Series in Montreal three weeks ago needed a fifth-set tie-break to finally see off the world number 35.