Liverpool had a magnificent opener after beating West Ham 4-0 at Anfield.
Liverpool who finished fourth last season in the Premier League were determined to have a good start and their breakthrough came in the 19th minute.
Left-back Robertson bombed forward a slid a pass to Salah who had the easiest task of tapping in.
Liverpool went up 2-0 up in added time of first half with Sadio Mane scoring a similar goal to that of Salah.
They led 2-0 at halftime and quickly got a third in the 53rd minute of the second half.
Mane scored his second of the day and Liverpool's third to make it 3-0.
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Striker Daniel Sturridge put the icing on the cake after connecting with a James Milner corner with his first touch of the game.