In last one decade we have too many African players in Premier League
Since players of African descent are better, I wouldn't be surprised if African players are more spread across many leagues, even the minor leagues always have African players.
Liverpool will not have Mohamed Salah but Tottenham will not have Son Heung-Min. They are both very important players for two teams but Liverpool have more attacking star players who can cover the absence of Salah. In contrast, Tottenham don't have such abundant substitutions and replacements like Liverpool and Son Heung-Min simply is almost can not replaced in their club.
Liverpool's attack will not diminish in Salah's absence, there is a list of other strikers who fill the void.
And also some of their midfield players are injured including some defenders Matip and Arnold, it might be a bit of a problem for Klopp.
https://www.liverpoolfc.com/news/liverpools-injury-list-suspensions-and-availabilityTottenham in Son Heung-Min's absence have Timo Werner coming in, but I'm not so sure he can perform in the same way as Son Heung-Min.