Chelsea chief Peter Kenyon has backed former club Manchester United in their battle to keep Cristiano Ronaldo away from Real Madrid.
"If a player is injured and doesn't play for 12 months we fulfill our obligations.
"From a coach's point of view, you need to be able to think this is not just my team for this season, but these lads are here for two or three seasons - because you have to plan.
"And then there's the fans. A large part of football is connecting with the fans, and the fans connecting with the players.
"If fans felt there would be another 23 players at a club next season, then football will lose something.
"Football needs to look at this issue seriously because it's all about passions and relationships. You can't start with a fresh bit of paper every year."