Novak Djokovic says he will focus on adding to his six Grand Slam titles, rather than regaining top spot in the world rankings, in 2014.
The Serb, 26, beat world number one Rafael Nadal 6-3 6-4 to retain his ATP World Tour Finals title on Monday.
And Djokovic, now unbeaten in 22 matches, is targeting a fourth straight Australian Open title in January.
"The Grand Slams are the tournaments where I want to win, where I want to get my hands on the title," he said.
"That will be my highest priority for next year."
"It was very satisfying," he said. "After the last two and a half months, even more.
"But the only thing I'm not as satisfied about is the fact that I lost the three big matches in the three Grand Slams."
Djokovic, who was heading straight from London to Belgrade for the Davis Cup final against the Czech Republic, paid tribute to an incredible comeback by Nadal in 2013.
"The year-end number one is deservedly in Nadal's hands because he had two Grand Slam wins, the best season out of all players, the most titles," said Djokovic.
"You cannot question that."
Looking ahead to the Davis Cup final, which begins on Friday, Djokovic added: "God knows if we are going to have as a country another opportunity, another generation like this, to win a Davis Cup title at home.
"I'm going to do my best to recover the next three days and get ready for that one."
Nadal, 27, admitted he had been outplayed on Monday but insisted he was not upset to miss out on winning the one significant title to have eluded him.
"That's the sport," said the Spaniard. "Seriously, I think it's not going to change my career, winning or losing today.
"I will not be a better player, talking about the history, with that match or without that match. Maybe I am wrong, but that's my feeling.
"That's fine. I normally accept very well the losses. I am not very disappointed.
"I know that I was not the favourite for the match, even if I tried with the right attitude, fighting for every moment, trying to be positive in every moment, even if the match was not going the way that I would like."