Premier League: 10 talking points from the weekend’s action

Guardiola warns Grealish over Savinho, Southampton hit new low and is Arsenal’s negativity holding them back?

TALKING POINTS: Southampton manager Ivan Juric, Arsenal's injured wonderkid Ethan Nwaneri and Manchester's flying winger Savinho and Erling Haaland.

1 Struggling Alexander-Arnold left exposed 

So much about Trent Alexander-Arnold’s display on Sunday was puzzling. Real Madrid’s now-public courtship may have had something to do with it, but at times it felt he was being hung out to dry. Poorly as he played, he was deliberately exposed by his own team, left to deal with whatever threats Manchester United could conjure down their left flank while the only players likely to drop back and help him out, Mohamed Salah and Ryan Gravenberch, rarely did so.