Manchester City manager Pep Guardiola and Barcelona captain Sergi Busquets pay tribute to Sergio Aguero after his retirement announcement on Wednesday.

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Held at Barca's Nou Camp stadium, Aguero announced his retirement on Wednesday due to a heart complaint detected earlier this season. On debut against Alaves, Aguero was forced from the field and later was diagnosed with a heart arrhythmia.

Aguero had joined Barca in the summer after ten years with Manchester City and attending his farewell were both City manager Pep Guardiola and sporting director Txiki Begiristain. Guardiola later spoke of working with Aguero, as did Barca skipper Busquets.