After the incredible 5-2 victory over AS Roma in the first leg at Anfield, Klopp was faced with the questions of the European Golden Shoe leader and whether his performance warrants the tags given by English press.
The African star became the first Liverpool player since Steven Gerrard to score in five consecutive Champions League games.
And with 43 goals in all competitions, he trails Ian Rush's record set in the 1984/85 season, by only four goals.
"To be the best in the world maybe you have to do it for a longer period," he said, as quoted by Sky Sports. "His first goal is a genius strike, he's scored a couple like that. The second goal was also great play.
"He is in outstandingly good shape. He is a fantastic player that we are really happy to have. What a player!"
The Reds boss was also asked whether the result would have been different had Salah still been at the Serie A side this season and he responded in typical Klopp fashion.
"If Neymar didn't go to PSG, then Phil Coutinho is still here. It's just if, if, if."