Bayer Leverkusen chief Rudi Voeller has warned Premier League suitors they must pay top price for winger Karim Bellarabi.

The young German midfielder has been linked with Arsenal, Chelsea and Liverpool this month.

But Bellarabi has no release clause in his current contract, Bayer Leverkusen's director of sport Voeller revealed Sunday.

"He has no exit clause in his contract," Voeller told German broadcaster Sport1.