Afena-Gyan jumped from the bench for his third Serie A appearance as he scored both goals for the 2-0 win.
“I had promised to buy Felix the boots he really likes, which are really expensive, they cost €800, so he ran over and told me not to forget! Tomorrow morning, the first thing I do is buy him the boots," Mourinho told DAZN.
“I am sorry for Mister De Rossi and the Primavera squad, but Felix will stay with us. The Primavera work close to us, so Felix and another four or five players have come across to the senior squad.
“What impressed me the most was his cool head in front of goal. If he is not in terms of technique fantastic, he does have a strong mentality.
“You get these kids now who think they know everything, but he is humble and you can sense he just absorbs all this information from everyone around him. That's fantastic."
Mourinho also said: “It was a tough game, but we dominated possession, controlled it, perhaps lacked something along the vertical lines.
“Mkhitaryan had a fantastic game in that role, we were always in control, preventative marking neutralised the Genoa counter-attacks and they sat even deeper in the second half.
“At that moment, I felt Felix had a different profile and could make the difference, just as he did against Cagliari and Milan. He caused them problems with his energy, physicality and did it again.
“When he comes on, he changes the dynamics of the team. We had worked really hard, moved the ball very well and Stephan El Shaarawy made an incredible effort to adapt to this type of tactical work.
“Felix has this type of intensity, he presses the opposition, forces them to make mistakes and gave a different intensity to the side. I saw Eldor Shomurodov was running out of steam and I always felt we would win, although at times the possibility of a draw did flash across my mind. It would've been frustrating, but also positive for the performance.
Need a VPN? Or seeking to switch? Then support Tribal Football by clicking here to sign up with our official partners NordVPN. Not only will you receive the best VPN experience, but also great discounts by signing up via Tribal Football. Thanks for your support!