Djokovic set to surpass Federer as oldest no.1 in ATP rankings history (Image Source: IANS)
Nitto ATP Finals: Serbian great Novak Djokovic, who began his 419th week in numero uno position, will break Swiss legend Roger Federer's record as the oldest No. 1 in ATP rankings history by the end of this week at 36 years and 321 days old.
In February last year, Djokovic surpassed Stefanie Graf’s tally of 377 weeks to claim the record for the most weeks by a men’s or women’s tennis player as World No. 1.
Djokovic first became World No. 1 on 4 July 2011 at the age of 24. In contrast, both of Djokovic’s great 'Big 3' rivals, Federer and Rafael Nadal, reached No. 1 for the first time aged 22, according to ATP stats.