Liverpool right-back Nathaniel Clyne remains sidelined with a muscle injury that is expected to keep him out until the pre-season tour of Germany.
Jurgen Klopp was only able to take a 25-man squad to the Far East, but has now seen this dwindle to just 23, due to injury and impending transfers.
The right-back played the second half of the Reds’ 4-0 win away to Tranmere Rovers last week as captain, but sat out for the trip to Wigan Athletic, with Trent Alexander-Arnold starting in his place.
Liverpool head to Germany at the end of July, after a brief spell at Melwood, and will begin their time in Klopp’s homeland with a showcase friendly against Hertha Berlin on July 29.
They will then take part in the Audi Cup at the Allianz Arena, playing Bayern Munich (August 1) and one of Napoli or Atletico Madrid (August 2).
Sadio Mane is also due to be available for those clashes, having missed the first three weeks of pre-season while he recovers from a long-term knee injury.
While Clyne is unavailable in Hong Kong, Alberto Moreno has been passed fit, and is likely to feature at some stage against Palace.