Manchester City have took a big step towards their first Champions League football with a 2-1 away win over last year's runners-up Paris St Germain in the semi-final first leg.
PSG went ahead courtesy of a Marquinhos header in the first half, but Mauricio Pochettino's side lost control after the break with De Bruyne and Mahrez finding the back of the net in the space of eight minutes to secure City's 18th consecutive away win in all competitions.
Last year's runners-up PSG then found themselves with a higher mountain to climb as Idrissa Gueye picked up a straight red card in the 77th minute for a reckless challenge on Ilkay Gundogan.
The French champions will need to show next Wednesday the same away form that enabled them to beat Barcelona at the Camp Nou and Bayern Munich at the Allianz Arena in previous rounds if they are to progress.