Thomas Tuchel reveals 'very close relationship' with Pierre-Emerick Aubameyang amid talk of Chelsea transfer

Chelsea manager Thomas Tuchel says the club could use a proper central defender and also would like to boost their attack before the transfer window closes. Pierre-Emerick Aubameyang is one player who could bolster Chelsea up front and he has been linked to the club and a return to the manager who he played under at Borussia Dortmund.