Seeing as Gareth Bale was the only truely influential player that we have sold in last 12 months, frankly I am more concerned over who we bring in, rather than who else we sell. I don't see anybody, except for Lloris, Sandro, Verthonghen, Paulinho and Adebayor in our current squad who we could not do without at the moment.
It just shows the value of anticipated CL football that Man U can get a player of Mata's capability while we clearly cannot.