It was one of the most casual transfer announcements you could imagine. No press release, no 'breaking' announcement on Twitter and no viral video.
A suntanned Pep Guardiola, clad in a figure-hugging white T-shirt and summer chinos, casually sat down for his post-match press conference following the Houston derby in July and was asked about Manchester City's paucity of defensive options

Buried in his answer was the revelation another defender had played his last Manchester City game.
"Kolarov is one step to Roma," Guardiola glibly explained, prompting journalists to frown and exchange bewildered glances.
He was asked to clarify in a separate questioned and obliged; City's fourth and final full-back would be leaving.
Guardiola wanted to retain Kolarov having released Pablo Zabaleta, Bacary Sagna and Gael Clichy.

City had intended on signing two full-backs (Kyle Walker and Benjamin Mendy), but were forced to recruit another in the right-footed Danilo, billed as a right-back and a left-back by a club staff member but whose first English words to the media were 'right-back'.
Young, 32, is 10 years Luke Shaw's senior but has dominated the left-back position so imperiously he has started all eight of United's top six encounters this term.
But Young is 32 and so is Valencia. They will be 33 at the start of next season and are both out of contract next summer.
Mourinho has scoured Europe for the ideal replacement for the chided Shaw and is believed to prefer Juventus's Alex Sandro over Tottenham's Danny Rose and Celtic whippersnapper Kieran Tierney.
Shaw is the whipping boy of the United squad but not as certain to depart in the close season as some of his (former) competitors.
Daley Blind (three league starts) and Matteo Darmian (two league starts) may already be house-hunting for their next location and few United supporters would object to them being jettisoned.
Going, going, going?
One of the particular quirks about Mourinho's United is the established full-backs are the same pair Van Gaal settled on over three years ago.
United fans witnessed Valencia and Young as the full-backs against Stoke in December 2014 and the combination under Mourinho has been as regular as a misplaced Alexis Sanchez pass.
Just like Guardiola, Mourinho could sell at least three full-backs, with Shaw generating interest outside the Premier League top six competitors.
Should United opt to get rid of Shaw, it has to be this summer if they are to recoup any dough from the initial £27m they paid Southampton for him in 2014.
Blind and Darmian's deals also expire in 2019 but executive vice-chairman Ed Woodward would back himself to obtain profits from their £13.8m and £11.8m signing fees.
'Aspire' may be David Moyes's managerial epitaph but Mourinho would aspire to emulate City's transfer strategy.
Nolito, Fernando, Jesus Navas, Samir Nasri, Wilfried Bony and Kelechi Iheanacho were among the dead wood and driftwood discarded last summer and United supporters should be reassured that Mourinho intends to ship out at least six in the summer, excluding the Los Angeles-bound Ibrahimovic.
Timothy Fosu-Mensah may be entrusted with deputising for Valencia next season after a season of regular football with Crystal Palace where he has also attained his first senior Netherlands caps.
The 20-year-old has had a variable but valuable campaign at Selhurst Park, where he has played primarily at right-back and United have not scouted that position as extensively as the left.
Young, whose United future is secure, would vie with Sandro or Rose on the other flank should Mourinho insist on a replacement for Shaw.
After Robin van Persie did not receive one, expect Shaw to earn a Twitter announcement.