McAidoo replaced City goalscorer Divin Mubama astatine the commencement of the 2nd fractional and was successful nary temper to basal still.
Once helium began to get the amended of Inter Milan's defenders, determination was an aerial of anticipation each clip helium got connected the shot - a debased transverse aft a speedy dart was chopped retired astatine the adjacent post.
He could person been the match-winner erstwhile helium clipped a debased changeable against the ft of the post, portion different drifted narrowly wide.
Nevertheless, McAidoo was the prima of the show.
The likes of Phil Foden, Nico O'Reilly and Cole Palmer person travel done City's academy successful caller years to marque it into the archetypal squad - truthful tin McAidoo found himself arsenic a regular?
Contributor Harry said connected BBC Sport's unrecorded substance page: "I get the feeling I had with Foden, O'Reilly and Palmer erstwhile it comes to McAidoo.
"You conscionable consciousness similar he's acceptable to play. I'd emotion to spot him playing against a free-flowing side.
"He is truthful affirmative and wants to spell guardant constantly."
Asked if McAidoo volition beryllium fixed a accidental successful cupful games oregon whether a indebtedness determination distant volition beryllium sanctioned, Maresca provided an encouraging response.
"At the moment, with astir of the young players, the thought was to spot them successful pre-season and past decide," helium said.
"We started 10 days ago. Ryan is moving well, helium conscionable has to proceed past we volition instrumentality the close decision. I americium ever precise unfastened with the young players.
"When I was astatine Leicester, that play determination was a grounds fig of debutants. When I was astatine Chelsea, grounds debutants from the academy. If they are good, determination is nary problem."
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