Everton transfer lasted just two games after nightmare debut, horror injury and world-record deal

"A colossal defensive debut from Manchester City's summer signing."

That was the verdict from BBC Sport's Phil McNulty of City centre-back Eliaquim Mangala after his performance against Chelsea on September 21, 2014.

He contributed to a creditable 1-1 draw for the Manchester outfit, with future Everton manager Frank Lampard scoring for City against Chelsea.

As much as the Chelsea legend's goal against his old club dominated the headlines in the aftermath, the efforts of the new defender were also widely discussed. The new City star dealt brilliantly with the on-fire Diego Costa and looked poised to form a strong partnership with Vincent Kompany at the heart of defence.

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Initially his transfer was thought to be in the region of £32 million, although leaked documents revealed the full cost of the France international to be closer to £42 million - a world-record sum for a defender. More money well spent by the richest team on the planet?

Well, Mangala's zenith arguably came in that battle with Costa. Less than a week on from his first outing, he conceded a penalty and scored an own goal to leave City 2-0 down at Hull City.

He would never fully recover in a City shirt and while he did make 48 appearances in the Premier League across his first two seasons, the £47.5 million signing of John Stones signalled the start of a new era under Pep Guardiola in 2016.

After a decent loan spell at Valencia, there was a brief rekindling of hope at City for Mangala the following year. He made nine league appearances as Guardiola's side streaked