By ESPNSTAR.com staff
The Poland international is one of the most highly-coveted strikers in Europe but has always remained fiercely loyal to the Borussians.
The likes of Manchester United and Manchester City have been continually linked with the player's signature but he has always indicated a willingness to put the interests of the team ahead of that of his own.
Klinsmann was also a prolific striker of some note and was at a similar juncture in his own career. The ex-Germany coach opted to move abroad and had a successful albeit nomadic career as he played for Inter Milan, Monaco, Tottenham and Sampdoria before a final stint with United States-based Orange County Blue Star.
The former striker called on Lewandowski to consider his own interests as paramount and feels his decision should be final.
"I think the most important perspective to look at it from is his own. If he's happy at Dortmund, and enjoying it, then keep enjoying it," he told reporters.
"If he's hungry for another adventure, then go. He should do what he feels is right.
"If he decides to go to another league, whether it's the English, Italian or Spanish, then it is his decision.
"He's a special player and is fun to watch. Obviously Dortmund fans love him; German fans in general love to have a player like him."
Lewandowski has scored 16 goals from 26 appearances and is third on the list of topscorers in the Bundesliga this season.