Resolves YES as soon as he wins the final general classification of either the Tour de France, the Giro d'Italia or La Vuelta a Espana.

Otherwise, resolves NO as of the date he declares his retirement, or earlier should he announce his final grand tour.

Context, Jonas Vingegaard said: “I do think he can win a Grand Tour one day” https://www.cyclingnews.com/news/he-can-win-a-grand-tour-vingegaard-takes-uijtdebroeks-under-his-wing-at-visma/

His cycling stats: https://www.procyclingstats.com/rider/cian-uijtdebroeks