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UEFA have launched an investigation into the shameful scenes that marred the end of Manchester City's Champions League tie with Atletico Madrid. Fighting broke out between both sides towards the end of the second leg in Madrid, which finished 0-0, with City progressing to the semi-finals 1-0 on aggregate.

Atletico defender Stefan Savic was at the centre of the trouble, head-butting Raheem Sterling on the pitch, then clashing in the tunnel with Jack Grealish, having pulled the City winger’s hair when the teams clashed on the pitch. Although Savic was awarded a yellow card for his part in the on-pitch melee, if referee Daniel Siebert did not spot his head-butt on Sterling, UEFA can take retrospective action against him.

UEFA are set to appoint an ethics and disciplinary officer to oversee the investigation, which could see both sides hit with charges over the behaviour of their players, despite Atletico’s cynical fouling ultimately sparking the ugly scenes.

The fall-out from Wednesday’s shameful end to the tie continued, with Atletico president Enrique Cerezo hitting back at Guardiola’s "prehistory" jibe, made after the first leg. After