The match will be tough but Arsenal to collect all three points.
Playing a match on Monday nights is a pain in the backside for away fans, especially over long-distance and visiting a place like Bramall Lane is no walk in the park but Arsenal should be too strong for their promoted rivals today.
It is difficult to predict what team Unai Emery will put out but it is the formation that will be pivotal. If Emery plays too conservative against the Blades he will be inviting trouble on.
Arsenal needs to be attack-minded, especially if they start with Kieran Tierney and possibly Hector Bellerin. Either or both will be critical in opening up a disciplined Sheffield defence.
A creative player is definitely required and hopefully, Emery will refrain from playing three defensive midfielders.
If Sheffield United are invited to attack they will do so and the best way to contain them is to attack yourselves.
Sheffield United will defend deep
Chris Wilder will set his men up to counter-attack so they are expecting an onslaught. Arsenal should give them what they expect. They will also get as many men behind the ball as possible and width will be important in breaking them down.
We know how these games pan out most of the time, one team dominates, the other defends deep. Sheffield will be looking to land the sucker punch and Arsenal will want to turn domination into goals.
When Arsenal fail against teams like Sheffield it is usually because of their own doing. If Arsenal avoids errors, does not get frustrated and remains patient and calm, they will win.
Getting the basics right will be the difference between collecting all three points and not.
So, I expect Arsenal to dominate possession, to be attack-minded, to use width and creativity in the middle. I expect Sheffield to look for the counter, to defend deep and spoil at every opportunity.
Predicted score
Sheff Utd 1 -2 Arsenal