The Argentina striker hit the winner against Champions League opponents Galatasaray last night.
"Sincerely, I'm very happy," said Icardi. "Especially the match made by the team.
"I am of course happy to have scored this goal that offers victory. We must continue to work for the future.
"I am not yet 100%, but with a goal, the pain passes. I will try to recover and play the next match in the best possible way."