Chelsea midfielder Cole Palmer controls the ball under pressure from Manchester United players during their Premier League clash at Stamford Bridge. (EPA Images pic)LIVERPOOL: Arsenal moved top of the Premier League with a statement 1-0 win at Liverpool as Manchester United plunged further into crisis with a 2-0 defeat at Chelsea.

Brighton could prove to be Arsenal's biggest challenge to retaining their title after the Seagulls inflicted a second consecutive defeat on Manchester City.

AFP Sport looks at three talking points from the weekend's action:

There are few feats Mikel Arteta has not achieved since taking charge of Arsenal seven years ago but a Premier League win at Anfield had eluded him until Sunday.