Great player, so not on our radar. *strangles inner muppet*
I wouldn't rule it out completely. Once the club realise Gundogan and Kroos are not happening (must surely be pretty close to this conclusion by now), our options for creative central midfielders start to become pretty limited. Hererra would be great, but may want to experience CL football with Bilbao, Pjanic or Koke would probably be very difficult, and then who's left? Rakitic might be our best (and possibly only) option.