You are entitled to ask for what you want for him, but it sounds like you are basing it on what we have paid for fullbacks before. There is no bidding war here, it is a case of one club wanting him, one club willing to consider selling him and one player willing to accept the move. I don’t think you are in as strong a negotiation position as you think you are. If we walk away you will be left with an unhappy player, then what? Accept a similar bid in 12 months time and an adversely affected team spirit?
The only happy solution for both parties here is a halfway £40 million accepted offer. Otherwise both clubs will be in weaker positions when they next negotiate transfers. If we walk away at £30 mill you will be weaker, if we cough up £50 mill we will be weaker.