Novak Djokovic insists he is a different person as he prepares to make a comeback at this week's Shanghai Rolex Masters.

Djokovic relishing second coming

Djokovic relishing second coming

The world number one has not played a competitive match since losing to Stan Wawrinka in the US Open final on September 11 and pulled out of last week's China Open due to injury.

Djokovic looked set to sweep all before him once again after winning the Australian Open and claiming a first Roland Garros title but the 29-year-old was then ousted in the third round of Wimbledon.

A first-round exit to Juan Martin del Potro in the Olympic singles tournament followed before he was beaten by Stan Wawrinka in the final of the US Open.

The Serbian has not been 100 per cent physically and there have been rumours of off-court problems but, as he prepares to face Italy's Fabio Fognini in the second round on Tuesday, Djokovic seems in a good place and not as stressed as before.

"My approach is just different," he told reporters. "The last three months were up and down, but generally I didn't find that kind of satisfaction on the court, which is the very reason and the source of my motivation to play tennis.

"So that's my priority now, to get back into that inner joy and really feeling happy for being on the court, and everything else comes second and behind that."