Lukaku started with a goal, things are going well for Chelsea. I expect more goals to come in this match. Chelsea control the ball, using right wing very effective. Lukaku tries to shoot whenever he finds a position. Pablo Mari got very unnecessary yellow card, it's harder to hold Lukaku now. Arsenal desperately need Aubameyang in attacking field.
In earlier games Tottenham won with a penalty. Manchester United got only a draw in Southampton away game.

And Chelsea found second goal with Reece James already. I don't think Arsenal get anything here after two goals down.