They are the top two assisting Premier League defenders ever - with 64 for Alexander-Arnold and 60 for Robertson.
They are some way clear, with Leighton Baines (53) and Graeme le Saux (44) the only others to set up more than 40.
In all positions, only ex-Manchester City midfielder Kevin de Bruyne, Reds team-mate Salah and Tottenham forward Son Heung-min assisted more goals since the full-backs linked up in 2017-18.
They feature second and third on the list of most chances created by Premier League defenders (since Opta started to record that data in 2003-04).
Alexander-Arnold created 516 chances, with 446 for Robertson - both featuring in the top 10 in all positions since 2017-18.
The now-retired Baines tops that list for defenders with 635 chances created.
But Baines played 420 games in the English top flight for Wigan and Everton over 14 years - Robertson has played 308, including his time at Hull, and Alexander-Arnold 251.
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