Chelsea have reportedly added Marc-Andre ter Stegen to their shortlist of transfer targets. The Barcelona goalkeeper is rumoured to be attracting attention ahead of the next transfer window, with insiders claiming preliminary talks could soon take place. Until a fee and conditions are finalised, the deal remains vulnerable to disruption - especially if Tottenham, Newcastle and Man Utd decide to make a formal offer of their own in the coming days. With only 9 goals conceded in 8 (1.12 per game), Chelsea have been one of the stronger defences in the Premier League this season.. Marc-Andre ter Stegen would be asked to keep that standard and provide dependable cover when needed. Alongside this, Barcelona are said to be exploring Fisnik Asllani, Alexander Isak and Etta Eyong with Chelsea likewise connected to Dayot Upamecano, Ivan Toney and Guela Doue. Can't get enough Chelsea transfer rumours? Follow @PlayerSwitchCom on Twitter for the latest transfer news as it happens.