Following lengthy negotiations and final medical checks, Michel Aebischer has completed a transfer to Union Berlin from Pisa. The midfielder is now fully registered and eligible for selection for his new team. It's a statement signing for Union Berlin, who have moved quickly to finalise the deal ahead of the close of the window, with fans salivating at the thought of seeing their new signing in a Union Berlin shirt. Unlike many transfers, this move came without rival competition, allowing Union Berlin to finalise the signing smoothly. There are currently no rumoured links for either Pisa or Union Berlin. Stay tuned for more details as the story develops. Need more Union Berlin transfer rumours? Follow @PlayerSwitchCom on Twitter for news and updates as they happen.