A look at Djokovic's ATP Masters 1000 set

It’s been a long and twisting road for Novak Djokovic but after over a decade on tour and several tries, the Serbian made history by becoming the first player to complete the career golden Masters.

On Sunday, he finally won the ATP Masters 1000 title he was missing, the Western & Southern Open in Cincinnati by overcoming Roger Federer in a nearly flawless straight-set victory.

Djokovic had lost five finals in Cincinnati, but this time, he would not to be denied. Federer is a seven-time champion in Ohio, and he's missing Monte Carlo and Rome from his complete Masters 1000 set.

Though it took him until he was 31 years old to win Cincinnati, Djokovic has actually won each of the nine Masters 1000 tournaments at least once since just 2015.

The former world No. 1 also owns a career Grand Slam, including holding all four majors at once, a Davis Cup title, an Olympic medal, and multiple ATP World Tour Finals wins.

It all started in Miami in 2007 for Djokovic where he won the first of his 31 ATP Masters 1000 titles. He's only one behind Rafael Nadal for the all-time record. Nadal is missing Miami, Shanghai and Paris from his collection.

The Masters series began in 1990 and include nine stops, Indian Wells, Miami, Monte Carlo, Madrid, Rome, Cincinnati, Shanghai, Canada and Paris.