Transfer interest is building around Deniz Undav, with Leverkusen understood to be weighing-up a move for the Stuttgart forward. While there has been no official bid as yet, the club may act swiftly if they decide to pursue the deal before the transfer window slams shut. Until a fee and conditions are finalised, the deal remains vulnerable to disruption - especially if Arsenal decide to make a formal offer of their own in the coming days. At 2.07 goals scored per game this season, Leverkusen already pose a big threat. Deniz Undav would be expected to maintain that level and give them another reliable option in attack. There are currently no rumoured links for either Stuttgart or Leverkusen. Want more transfer rumours like this? Follow us on Twitter @PlayerSwitchCom for up-to-the-minute transfer news direct to your feed.