If we sign someone up front, it'll be in the summer — and will probably be a replacement for Aguero (makes me sad typing that)
The only two players at his level, who would be available, are Griezmann and Aubameyang. Would be very happy with either
Before the start of next season Griezmann will be 27 and Aubameyang 29, I would imagine that a long term replacement for Sergio would probably have to be younger than this as we'd want them for 5+ years