World number one Novak Djokovic says Brazil can be the next host of the ATP World Tour finals.
Djokovic defeated Rodger Federer to win the season-ending tournament at London's O2 Arena last Sunday, sealing his return to the top of the men's ranking.
The Serbian was in Rio de Janeiro this week to open a tennis court for underprivileged youngsters, and flagged the possibility of the ATP World Tour Finals shifting to South America.
The end-of-season event is contracted to the O2 Arena until 2015.
"I know that you already have one tournament here and if I can help in any way to promote tennis here in Brazil I will do my best to do that," Djokovic said.
"I am sure that Brazil, with the Football World Cup in 2014 and the 2016 Olympics, deserves one big major tournament in tennis.
"Actually I think there is a very good chance that the Masters Cup I just won at the end of the year will be held here in a couple of years, so we hope that will happen because I like Brazil very much and I like the culture and the people and I have enjoyed my time so far."
Djokovic paid tribute to former world number one Brazilian Gustavo Kuerten, who won the French Open three times during an impressive professional career.
"I believe that Brazil in the past, with Gustavo on the top, had a lot of success in this sport and a lot of tradition and history," he said.
"Gustavo brought a lot of joy to the Brazilian people in tennis and made this sport popular in the country. So for me it is a great privilege to be here for the first time in my life."
"It is my first day but I am already very impressed with the reception I got and a lot of generosity from the people and I am very happy."