Lukas Podolski may have to leave Arsenal if he wants to remain a regular fixture in the Germany set-up, according to Rudi Voller.

The 29-year-old has started just one game in all competitions for the Gunners this season as speculation continues to grow over his long-term future.

Podolski has aired his frustrations on two occasions this week, but earlier today Arsenal manager Arsene Wenger insisted that he was not for sale.

However, Voller concedes that the out-of-favour forward may have to quit the North London giants for the good of his international career.

"You must not write Poldi off, he's not very old yet, at 29," Voller, a former Germany coach, told Bild.

"Lukas is a very good player who always faces up to the challenge. Competition has got fiercer, but it says a lot that he is still always involved [for Germany].

"Of course it's an advantage for a player's self-confidence when he is playing regularly, though."

Podolski is contracted to the Emirates Stadium club until 2016.