Villarreal winger Samuel Chukwueze has come on in leaps and bounds under Unai Emery, and the Europa League Final would be a poorer spectacle without him.
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Looking past that little teacup storm however, this is a transfer that raises a number of questions.
The first of them was swiftly addressed by the chairman of the League Management Company (LMC) Shehu Dikko: Musa has graciously elected to see out his short-term deal back at his former club totally gratis.
That helpfully cleared up any confusion regarding how Pillars intended to offset his ginormous wage, but it is a corollary to the next consideration: quite why has it come to this?
While couching it as a giving-back project makes it a little more palatable, there is something jarring about a 28-year-old forward – notionally in his physical peak – being so out of luck in terms of options that he is taking up an option typically broached at the end of one s playing career.