Renato Sanches was the one that got away from Manchester United this summer.
Despite reports once suggesting the Portuguese starlet was close to a move to Old Trafford, he ended up at Bayern Munich in a deal worth €35 million.
In truth, United won't be too bothered about missing out having signed Paul Pogba for £89 million but the fact remains they failed to sign one of Europe's hottest talents.
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And the reason why? Because they hadn't yet lined up a replacement for Louis van Gaal.
This is according to Bayern chief Karl-Heinz Rummenigge, who explained to Bild why they beat United to the signing of Sanches.
He said: "We knew very well that Renato had a firm offer from Manchester United.
"I heard that the United deal couldn’t be completed, as they didn't know who their next manager would be.
"We invited Benfica's president and Sanches' agent to Madrid and that night we shook hands on the transfer."
What could have been. Worse still, Jose Mourinho wanted to sign Sanches but couldn't.
"I arrived [at Manchester United] late," he told SportTV, per the Daily Mail. "I signed in May, we started talking a week before, but completely out of the process.
"If I had arrived earlier, I'd fight for him.
"Manchester United watched Renato many times and maybe I did it even more. In so much time at home, I watched many Benfica and Portuguese league games, I got to know the boy better with time.
"He's in a big club, in a league where he'll certainly be the champion. The club have players of very high level which belong to the structure, a little like Benfica."
But perhaps Mourinho doesn't even need Sanches - after all, he has Pogba, Morgan Schneiderlin, Marouane Fellaini and Ander Herrera at his disposal in central midfield.
Bastain Schweinsteiger can also be considered an option, even if he is highly unlikely to feature at any point this season.
It's Fellaini that Mourinho has been most impressed with in central midfield, though.
"Fellaini is playing well," he told reporters following United's win over Southampton last month. "It's changed completely the relationship and I am happy with the result.
"Maybe a simple phone call can make a difference, to a player who feeling he was not loved, a player who when the [transfer] market opened everyone was saying he was leaving. Everyone was saying he wasn't for me.
"Maybe a simple phone call then after my presentation as Manchester United manager changed a lot. I said to him, 'Forget everything you read. With me you don't leave, for sure'."