Liverpool have already found a way around the new wall law for victory over Norwich City.
Revised laws have been brought in for the 2019-20 season, which include preventing opposition players from interfering with the defensive team's wall.
When Liverpool won a free-kick against Norwich in a dangerous position, they showed a solution to get around the new law.
As Trent Alexander-Arnold measured up his set-piece, Georginio Wijnaldum, Fabinho and Firmino positioned themselves a metre in front of the wall.
Their own one blocked Canaries keeper Tim Krul's vision as Alexander-Arnold's lethal effort was struck.
Explanation
New Rules: If the human wall is made up of three or more players for the defending team, the players of the attacking team must stay at least one meter away. Liverpool used a new way to influence the wall with Norwich.... pic.twitter.com/K7ygVLH1AR— EPLWORLD.COM ENGLISH (@EPLWorldUK) August 9, 2019