The headline around Arsenal is authority. Clean sheets at this stage do not settle a title race, but they do show structure, spacing and concentration. For a side defending champions status, that matters.
There is also fresh intrigue around the squad shape. Other reports say Gabriel Martinelli has left in a major sale, a move that would naturally shift the balance of the forward line. If that change is still bedding in, this game becomes an immediate test of how Arsenal create chances without losing the defensive grip that has defined their opening weeks.
If Arsenal have looked controlled, Chelsea have looked explosive. Being among the early top scorers is not just a cosmetic detail; it points to a team creating volume, attacking with confidence and carrying threats from different areas.
That makes this a difficult tactical puzzle for the home side. Chelsea will believe they can stretch any back line if transitions open up, while Arsenal will want to turn the match into something more measured and territorial.
No one wins the title in early September, but big matches this soon can sharpen the picture. A win for Arsenal would reinforce the idea that champions can control games in multiple ways. A win for Chelsea would make the rest of the league take their fast start more seriously.
After Sunday, the focus will shift quickly to whether the winner can carry momentum into the next run of fixtures - and whether the loser shows any sign that this was more than a single bad afternoon.