KAZAN - 17-year-old defender Isaac Donkor spoke to Inter Channel after making his first-team debut against Rubin Kazan: "I'm really happy, especially for all the people who care about me. Coming on tonight was amazing, I feel so excited but also sad about the goals we conceded. It could have been better. The coach asked me and Garritano to warm up, then he decided to bring me on. Playing alongside these great players was an unforgettable experience."