Jürgen Klopp is confident further gains can still be made by Alex Oxlade-Chamberlain and Trent Alexander-Arnold.
Alexander-Arnold is closing in on 100 appearances for Liverpool, with the 21-year-old having made his 99th outing last weekend against Tottenham Hotspur.
Meanwhile, Oxlade-Chamberlain has found the back of the net three times in spectacular fashion in the Reds' previous two matches.
Following his double over Genk last month, the midfielder stressed he could raise his levels even more after such a lengthy period on the sidelines with a serious knee injury.
It was a statement Klopp agreed with when it was put to him during a press conference at Melwood on Friday to preview the trip to Aston Villa.