In extending the contract Chelsea is right crazy to give a long time to the game while we know Jackson has not contributed much to Chelsea and last season he performed poorly but somehow Chelsea always extends long contracts not just 1 player but many.
Maybe we never know the reason behind it - or Chelsea management sees Jackson's potential in a brighter future so he is extended a longer contract for up to 8 more years.
I myself am not so sure he will perform brilliantly this season, he must try hard because Chelsea has given him full confidence with a long contract.
Chelsea have unpredictable when extending new contract for their players more than five season later, unbelievable after reach agreement deal extending contract for Nicolas Jackson until season 2033 or 8 season later. I think huge speculation did by Chelsea's management by extending their players contract over eight season later and its not worth yet when players have underperform paid them much composition.
Its not first time for Chelsea extended their players contract until season 2033 because have several players before get extend contract almost eight season later.
Its big problem keep their players for longer time if most of them get injury and difficult keep defend their top performance but not possibility reach mutual contract.