upon

It was at the university that the two first hit upon the idea of studying smelly shoes.

Keeper Dean Henderson was outstanding when called upon, reacting to turn Ryan Gravenberch's shot on to the post in the first half, while captain and key defender Marc Guehi showed exactly why there was such disappointment at Liverpool when a proposed £35m move to Anfield collapsed on transfer deadline day.

The small world of billionaires could always collapse upon itself.

Instead of having found out about the spot on social media, Andres Lell stumbled upon it during a cross-country road trip.

The Justice Department reportedly held off on charges to see if Homan, upon entering government, would fulfill his end of the bargain.