With 22 Grand Slam singles titles under his belt, Novak Djokovic is one of the greatest tennis players of all time, sharing the record for most slams in the men’s game with Rafael Nadal. 

His strengths and flaws if any!) are highlighted in the following ways:

Skills:

1. Outstanding return of serve: Djokovic is renowned for having one of the best returns of serve in tennis history. He can read an opponent’s serve and put his return in spots that are challenging for the opponent.
2. Excellent defence: Djokovic can cover the court very well and recover seemingly impossible shots with to his quickness and feet. He frequently frustrates opponents by quickly switching from defence to offensive.
3. Djokovic is a versatile player who can play a variety of shots, from strong groundstrokes to finesse drop shots. He is also renowned for his capacity to modify his strategy in order to neutralise the advantages of his rival.
4. Mental toughness: Djokovic is tenacious and fiercely competitive. He has a history of winning games when he was trailing or had match points.

Weaknesses:

1. Emotional outbursts: Djokovic has a history of displaying displeasure on the court, which occasionally leads to outbursts that may be detrimental to his performance.
2. Second serve lapses: While Djokovic has a powerful first serve, his second serve can occasionally be weak, especially under pressure.
3. Net game: Despite recent improvements, Djokovic’s net game is not regarded as a strength when compared to other top players.

Djokovic is recognised as one of the best tennis players of all time since, on the whole, his abilities considerably surpass those of his limitations.