The sight of Newcastle predator Alexander Isak wheeling away in celebration at the Emirates Stadium on Tuesday night would have focused the mind at Arsenal. If it didn't then the penny may never drop.
Mikel Arteta has built a marvellous squad, one that can more than hold its own against the finest in Europe, but it's missing something - a certain magic.
To complete what he has started, Arteta needs a prolific centre forward. It's more than the cherry on top - such talents are fundamental to successful teams.
Arsenal have had their fair share of the years: Thierry Henry, Nicolas Anelka and Ian Wright, for example.