The pair missed Liverpool's friendly win over Blackburn on Thursday as their minor injury issues continue to complicate the club's build-up to the Premier League's return.
The Mirror says Salah and Robertson had played in the inter-squad friendly that took place last week.
However, both missed out in another inter-squad game, before also being absent against Rovers with minor injuries.
They have also sat out a number of recent training sessions too.
Jurgen Klopp and his coaching staff are electing not to take any chances with either man.