The striker has caught the attention of Manchester United and City with his goalscoring performances for the reigning Bundesliga champions, while Bayern Munich and Juventus are also believed to be interested in signing the 24-year-old.
Sir Alex Ferguson's team were said to have been in contact about a possible move for the striker, but these claims were ruled out by Lewandowski's representative, as exclusively revealed by Goal.com.
|GOING ALL THE WAY?
|15/2||Borussia Dortmund are 15/2 to win the Champions League with BetVictor|
"Robert has made his decision. Only he decides when he will make his decision public, though," Kucharski said on a Polish talkshow.
"Those who have followed Robert's career will realise that he's never stayed at a club for longer than two seasons.
"He's already in his third season at Dortmund. Read between the lines and you'll know what this means..."
The striker has a contract with BVB until the summer of 2014.