Kevin de Bruyne has announced he will leave Manchester City after 10 years when his contract expires at the end of the season.
De Bruyne, who turns 34 in June, has won 16 trophies since joining City from Wolfsburg in 2015, including six Premier League titles and the Champions League in 2023.
The Belgium international has been labelled "one of the greatest midfielders to ever play in this country" by his manager Pep Guardiola.
But his announcement on Friday does raise several questions, which BBC Sport attempts to address.
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Pep Guardiola and technical director Txiki Begiristain.