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Before the Capital One Cup rolled around this midweek, Arsenal and Liverpool were heading toward Week 10 of the English Premier League in good spirits and fine form, having dispatched confident wins last Saturday.

But Tuesday night saw Jose Mourinho continue his impressive record over Arsene Wenger, with Chelsea knocking Arsenal out of the Capital One Cup with a 2-0 away win at the Emirates Stadium.

Not that the first-team’s momentum should be dented in any way, given that it was a trademark Wenger B team selection on Tuesday, but suddenly the mood among Arsenal fans has turned just a little tenser, a little testier, while the Liverpool camp are starting to feel optimistic again.

Saturday will see the league-leading Gunners welcome the visit of the third-placed Reds in a surefire spectacle. Let’s look ahead at six key battles that will have a huge say in where the points go at the end of the 90 minutes.