Stuttgart's sporting director Fredi Bobic has suggested that Shinji Okazaki could depart the Bundesliga outfit this summer.
The 27-year-old, who joined the club in January 2011, scored just one goal in 25 appearances for the German side last season.
However, the Japan international has reportedly drawn interest from a number of clubs with his exploits at the Confederations Cup this summer.
"He did well in his first year-and-a-half with us and was also good last season, although his goal ratio could improve," Bobic told Bild.
"There is a chance that we could see movement in the transfer market."
A number of Premier League clubs are believed to be monitoring developments.