Speaking to the Daily Mail, Robertson said, "You can see the shape he's in. He is getting better with age in terms of his physical output and attributes. He is a big-game player. His goals and assists speak for themselves and he always shows up against our rivals. The minute he walked through this door he's set Anfield and other stadiums alight. He is a Premier League legend, of course, he is, but still wants to write a few more stories and hopefully, that is him showing up in other big games this season.
"Obviously he is our main man and teams try to stop him. Mo knows when a big game is on the horizon but he also sets standards every single day. He's a model professional and if any kids or anyone are looking at professionals to base themselves on, then Mohamed Salah is not a bad person to do it to. He dedicates his life to football."
The defender also threw light on Slot's ideas and tactics as he added, "So far the start has been excellent. Everyone has enjoyed learning a new way of playing and trying to implement the manager's ideas.
"We still have that freedom to help our wingers and overlap but defensively we have worked on certain things to hopefully become more defensively secure as a unit. He has left no stone unturned and it is up to us to go out and perform at the weekend. We've done that so far but this will be a different test."