​Debut delight for Samba and Allan as City power past NorwichTeenager Floyd Samba enjoyed a dream debut, bagging a brilliant brace – with fellow debutant Allan also on target – as City began the defence of the Carabao Cup with a fine 5-0 third-round win at home to Norwich.17-year-old Academy graduate Samba was one of a trio afforded their maiden City starts alongside Gerónimo Rulli and Allan.And he truly enjoyed a night to savour by first opening the scoring with a 29th minute header before then bagging a brilliant second early in the second half.Allan more than made his mark too, the Brazilian winger marking his Etihad bow with a superb second half effort after Rayan Cherki had also struck before the break.And an 89th minute effort from substitute Ryan McAidoo rounded off the evening perfectly.It may have been a different-looking City, with Enzo Maresca making 10 changes in total from Sunday’s 1-0 derby win at United, but the end result and dominant display was comfortingly familiar.City’s reward for what was a sixth straight win in all competitions is a fourth-round home tie against Brighton late next month.The game in briefWith the fixtures coming fast and furious, Blues boss Maresca chose the onset of this season’s Carabao Cup to freshen things up.And debutant Samba – entrusted with the central striking role with Erling Haaland rested – was straight into the action, superbly teeing up Rico Lewis for a ninth minute shot that was a fraction over.With Norwich packing bodies behind the ball and seeking to break on the counter it required patience and composure for CityBut our approach was rewarded on 29 minutes with a dream debut goal for Samba.Nico O’Reilly fired in a deep cross from the left flank which was diverted to Allan on the oppositive wing.The Brazilian did well to instantly despatch an inviting ball into the heart of the box and Samba showed brilliant awareness and poise to steer a deft header home to the delight of the Etihad.Within three minutes City’s grip on the game was further solidified as Cherki doubled the advantage.Ayyoub Bouaddi was the provider, the Moroccan threading a neat pass from the middle of the Blues’ half that was diverted into the path of the onrushing Cherki.The French wizard needed no second invitation to power on before drilling a low shot past former City keeper Daniel Grimshaw.It almost got better for City and Samba on 39 minutes as the teenager burst clear again in the Canaries box before a timely block from Kellen Fisher averted the danger.However just three minutes after the restart a third goal did arrive – as Allan marked his City debut in memorable fashion too – the winger cutting in from the left of the box before firing home a low shot past Grimshaw.And the Samba beat then continued on 54 minutes.Rayan Aït-Nouri fed Samba on the right of the box and the teenager coolly curled a brilliant shot past Grimshaw.Norwich did have the ball in the City net via Mohamed Toure on 75 minutes