The Egyptian bagged his 24th goal of the season as the Reds earned a 2-0 win over RB Leipzig in the first leg of the sides' Champions League last 16 tie on Wednesday.
“You don't have to ask me if or why he doesn't get the credit. If he doesn't get the credit, I don't know," he said.
“It would be really strange and really unexplainable why he shouldn't get the credit. He gets the credit here, internally, for sure for all these things.
“He played an outstanding game against Leipzig, and not only because he scored. No, in all the other parts.
“Actually my favourite moment in the game, especially a knockout game, was when he won the headed challenge in our own box after 87 minutes or something like that, when Angelino was in his back and wanted to volley the ball in.
“He played an outstanding game. He gets all the respect from us.
“If you don't give him the right amount of respect, you have to ask yourself why that is the case.
“The numbers and the performances cannot be the reason."