Liverpool is trying to overcome from the shadow of the Manchester City in last few matches their defense is working impressive, and now they need to hold Haaland and company as well if they are able to do then surely we can expect the toughest end of this season for the both teams at the top but current result bring down any team from top ranks as well.
In fact, it will be a little difficult for Liverpool to face Manchester City, even though Liverpool defense will block Haaland every move, this is not a solution to the problem but it will exacerbate the problems that will occur because Manchester City is currently not only competing relying on Haaland, but all Manchester City players are currently playing a role It's important who has the task of scoring and some midfielders also have the task of scoring and if the defense players are too focused on Haaland, the Manchester City midfielder will have the opportunity to score.
So providing a strategy to block Haaland is not the right choice or if you really want to maintain a draw it would be better to use a stronger formation and defensive strategy.