Multiple reliable new sources are reporting that Brentford have submitted a concrete bid for Maximilian Beier. The forward remains under contract at Dortmund, but the opening offer has opened the door for discussions between the two clubs - though it is unclear at this stage whether the current bid will be enough to tempt them to part with a prized asset. Brentford are still pushing to finalise terms. However, Aston Villa are still watching closely and may return with offers of their own. At 1.5 goals scored per game this season, Brentford already pose a big threat. Maximilian Beier would be expected to maintain that level and give them another reliable option in attack. Dortmund continue to be linked with Charlie Cresswell, Aaron Anselmino and Ben Seghir while Brentford are also rumoured to be tracking Joey Veerman, Georges Mikautadze and Harry Winks. Stay tuned for more details as the story develops. Need more Brentford transfer rumours? Follow @PlayerSwitchCom on Twitter for news and updates as they happen.