Arsenal must get the basics right to defeat the Blades
Sheff Utd will not be walkovers, anyone that saw their loss to Liverpool will know that. Anyone that saw their draw at Chelsea will know that and same for anyone that saw them win at Everton.
It would also be a mistake to think that they will sit eleven men behind the ball. They do not.
Sheff Utd does defend deep, they have to but they break quickly and are very organised. They are not an easy team to break down.
If Arsenal is to beat Shefield then they need to do what Liverpool did and not Everton. The Toffees absolutely dominated, yet lost and the reason was simple, they never took their chances and were impatient.
Three things Arsenal must do to beat Sheffield United.
Show patience
Arsenal cannot become frustrated, they must show patience, goals may not come too easy. It will take time to break Chris Wilders men down. Arsenal must not panic and if they keep their heads they will find the breakthrough.
Be very alert to counter-attacks
If Arsenal dominates possession, which they should do, then the only real outlet for United will be the counter-attack. Arsenal must be alert to this, they cannot push too many men forward in search of a goal.
Be Clinical
Liverpool dominated possession against Sheff Utd but only got three shots on target. They will not give Arsenal too many openings and when they do they must be taken. If Arsenal is not clinical they could easily end the game without a goal.