The 29-year-old found himself playing a back-up role for most of last season, with loan signing Emmanuel Adebayor leading the line.
Former Portsmouth and West Ham hitman Defoe netted 17 goals for Spurs last term despite his lack of starts in Harry Redknapp's starting XI.
A number of clubs are thought to be monitoring Defoe's situation at White Hart Lane and the England international has conceded he could be forced to quit the club if he is not playing more regularly this season.
"Everyone knows how much I love Tottenham. Everybody knows that they are the club I want to play for," Defoe told the Daily Mirror.
"But last season was heartbreaking for me in terms of putting my body on the line, being prepared to give everything for the club and not getting a game.
"Obviously I have to think seriously about my future. I will talk to the club and see what happens but right now all I want to do is what is best for Tottenham."
Jamaica is in need of a win against the U.S. Get the jersey of the Reggae Boyz.
Manchester City will try and win back the Premier League title with this new soccer jersey from Nike!
Support the USA national team with an official 2013 Centennial soccer jersey from Nike. Its Official.
Barcelona will wear this new home soccer jersey next season. They also have a new away jersey. Get them both.
Germany is one of the top teams ever and they will play the US on Sunday.
Neymar's move from Santos to Barcelona is no doubt the biggest summer transfer.
The hoop soccer jersey is classic and cool. The USA hooped jersey is perfect for every fan. Get in the Gear.
The USA will wear their blue away jersey against Jamaica in their World Cup qualifier on Friday night.
The Nike Hypervenom is the latest cleat silo from Nike. It will change your game and is worn by the game's top players.
The adidas Nitrocharge is the most talked about new cleat in years. It was released on May 15 and will take your pitch by storm.