Barcelona seem intent on prising Coutinho away from Liverpool and it seems that they’re willing to use Ivan Rakitic as a bargaining chip. Rakitic seems to be on the cusp of the Barcelona team and he could be surplus to requirements for Spanish Giants. 

The Croatian could become a pivotal player at Liverpool but at the expense of Phillipe Coutinho does not seem worth it. Obviously there would be the insentive of a huge cash over alongside Rakitic but it still does not seem worth it. Unless the offer was somewhere along the lines of £50mil plus Rakitic, Liverpool should not even entertain the idea of selling to Barcelona. Especially seeing as they managed to take two key players (Mascherano and Suarez) who Liverpool have never replaced since their departure. Rafinha would probably suit the bill more but even then the cash offer needs to be substantial.