It may simply be that United feel they could do with an upgrade in that department anyway, with either Fabinho or Vidal giving them more options to rotate between truly world class performers in central midfield. (caughtoffside.com)
Yes, Messi and Ronaldo occupy their own other worldly top tier — then you have a dozen or so world class performers on their own tier looking up at LM and CR. (justarsenal.com)
This is a 29 year old Standard Liege player and not a top notch world class performer. (caughtoffside.com)