Potter has been told that Chelsea finally have the type of player they haven't had since cult hero Costa was at the Blues. Like it or not, there was pressure on Pierre-Emerick Aubameyang when he arrived at Chelsea on deadline day. There was an expectation on Aubameyang to provide the goods for a team who had desperately lacked a goalscorer in previous seasons. It was even more of a 'gulp' moment when the former Barcelona striker was handed the 'cursed' number nine shirt upon his arrival. The likes of Alvaro Morata, Gonzalo Higuaín and Radamel Falcao have worn that shirt for the Blues in previous years and, in short, flopped.