Sell-on fees are a part and parcel of the modern game, with clubs keen to receive a continued financial reward for letting their stars move on. English clubs have been extremely savvy in inserting such clauses into the sales of players. Here are the 11 biggest in recent times... Transfer: Wolfsburg to Manchester City for £55m Sell-on fee earned: £10m for Chelsea Manchester City's high-end spending has been extremely rewarding for some of their rivals and although Chelsea really missed the buck...
Source: 90min.com