Forget Cristiano Ronaldo and his efforts to leave Old Trafford.
Only one saga can claim to have defined this year's summer transfer window: the one which has embroiled Manchester United, Barcelona and Frenkie de Jong for weeks on end. What started as Erik ten Hag's honest attempt to sign his former Ajax colleague and make him United's midfield lynchpin has turned into a nightmare for the player concerned.
With an agreement finally reached between United and Barca, De Jong is faced with Camp Nou exile if he fails to consent to the Premier League switch, which would necessitate him leaving his "dream" club. The Netherlands international, 25, is disgusted by the way he has been treated by Blaugrana chiefs - and it is not hard to see why.