Arsenal forward Lukas Podolski refused to rule out the possibility of returning to the Bundesliga despite insisting that he is happy in north London.
Sport Witness reports how the Germany international has been heavily linked with a move back to former club Cologne, and has fuelled speculation he could leave the Emirates in the summer following an interview with Transfermarkt magazine.
"The Bundesliga is one of the best leagues in the world and therefore in principle always interesting," he said. "In the Bundesliga, my thoughts naturally turn first to the FC [Koln].
"That is much more than a club for me, this is my home. Maybe I'll play again with the The Billy Goats, this is for me always an option and matter of the heart."
Podolski has grown increasingly frustrated by Arsene Wenger's reluctance to utilise him as Arsenal's main striker, and has been forced to settle for a place on the wing, despite Olivier Giroud's questionable form at the focal point of the Gunners' attack in recent months.
There have been suggestions that the 28-year-old will push for a transfer at the end of the season, but the German added that he would have no problem seeing out the remainder of his contract in England.
"[I have an Arsenal contract] Which I would also like to meet. But as I said, yes, you never know in football. Sometimes everything happens very quickly."
Podolski joined the Premier League club for a reported £10.9million fee in 2012, signing a £100,000-a-week four-year contract that ties him to Arsenal until 2016.
His departure from Cologne came about as a result of their relegation from the Bundesliga, but having sealed promotion back to the top-flight on Easter Monday - a game that Podolski was in attendance for - there have been fresh rumours of a possible return to the RheinEnergieStadion this summer.