The arrest had not previously been reported or disclosed by Ohio State, per reports. Full details of the arrest can be seen here.
It's unclear at this point what this arrest meant to Smith in regards to his status at Ohio State and/or if he was punished by the Buckeyes because of it.
USA TODAY's Dan Wolken says this new information, though, is "massive."
"Despite all the nonsense over the weekend, the bottom line is this: Why did Urban keep Zach Smith around? That is the only question that matters. The drunk driving arrest is a massive new element to this story. How much did they ignore or cover up and why?" he tweeted.
It's a fair question to ask, but it might be a stretch to say that a report of a 2013 DUI arrest is "massive" to Urban Meyer and Ohio State now.
Perhaps the Buckeyes' investigation into Meyer and the domestic violence allegations will find a lot more that could be troubling. Or, perhaps they won't.
We should find out soon. Ohio State said last week that its investigation was expected to take two weeks.