Former world number one Novak Djokovic, the last surviving member of tennis' "Big Four", said he does not plan on stopping any time soon but admitted that the retirement of rivals Roger Federer, Andy Murray and Rafa Nadal has been overwhelming.

Novak Djokovic, the last of tennis' 'Big Four', reflected on the overwhelming retirements of Roger Federer, Rafael Nadal, and Andy Murray. After defea

Novak Djokovic says he felt overwhelmed at the news that he will be the last active member of the 'big four'. With Roger Federer and Andy Murray having already left the sport, Rafael Nadal announced on Thursday that he will also hang up his racket at the end of the season.

Rafael Nadal will retire from tennis after the Davis Cup finals next month. He announced that persistent injuries influenced his decision. Nadal, 38, has won 22 Grand Slam titles during his career. Novak Djokovic paid tribute,