Ilkay Gundogan produced a display which showed why he was recently one of the most coveted midfielders in Europe.
The Mirror reported this summer he was on Arsenal's transfer list, but he ended the transfer window remaining at Borussia Dortmund.
Moving for the German international might still be a wise idea, especially considering Mikel Arteta's limp display in the Champions League this week against Dinamo Zagreb.
The Spaniard may just have stayed at Arsenal one season too long, with Arsene Wenger loyal to the midfielder, along with Mathieu Flamini and Tomas Rosicky.
Jack Wilshere's injury has left Santi Cazorla playing a deeper role, when he could be better utilised more offensively.
Gundogan last night put in a sensational performance for Borussia Dortmund in their 2-1 Europa League win over Kuban Krasnodar.
He touched the ball a huge 158 times, recording pass completion rate of 87 per cent.
Also winning three aerial duels, two tackles and three interceptions, Gundogan was an effective shield in front of the defence, but composed in possession.
He is an ideal partner for Francis Coquelin in midfield, with the technical skills to complement the Frenchman's destructiveness, and could run Arsene Wenger's possession game with ease.
Previous back injury problems appear to have subsided, with the 24-year-old making four Bundesliga starts early this season, and his price tag is surely escalating as he gets back to his very best.
Arsenal may not find a better suited replacement for Arteta anywhere in Europe, and while easy to say they should have moved for him in the summer, they should instead be looking forward at how they can try and tempt him away in January or even next summer.