Martin Odegaard’s carbon-copy goal shows why Arsenal will be different this season

Hang on. We’d seen that goal before, hadn’t we? We’d seen Martin Odegaard just there, lurking undetected in a pocket of space between defence and midfield. We’d seen Christos Tzolis drive inside and fire that exact pass into the centre. We’d seen Riccardo Calafiori’s decoy run and Kai Havertz intelligently leave it. We’d seen Odegaard’s little dart, the velcro control, the poise as he waited just a beat before pulling the trigger.If Odegaard’