On the way to Wyoming last weekend to run a half-marathon, I made sure to find the broadcast of Oklahoma's football game on my phone.

The week before, the Sooners were challenged by an Iowa State squad that was vying to knock OU off for the second straight season. But OU managed to hang on, and they were returning back home last weekend to take on Army.

I knew the discipline and tenacity the Black Knights were going to bring to the table. I also knew Army possessed an offense that is pretty much foreign to today's wide-open style of Big 12 football, the grind-it-out triple option rushing scheme.

Still, most figured that while Army was definitely not going to back down, the Sooners with their deep athleticism and quick-strike offense would prove to be too much.

It sort of turned out that way in the end, as OU did make some big plays down the stretch to win. But not before they survived what proved to be a test of wills against a gallant group of Black Knights.

Army took the Sooners to overtime. OU had a couple of chances to win near the end of regulation but was stuffed on a fourth-and-goal at the 1-yard line, and then the normally reliable Austin Seibert hooked a game-winning field goal opportunity on the final play of the fourth quarter.

The whole time that was going on, I was blazing a path northward on Interstate 25 while getting pretty nervous. Was this going to be the inexplicable loss the Sooners were going to have, much like Iowa State last season or Texas in both 2013 and 2015?

But OU got the ball first in overtime and scored a touchdown, and the Sooner defense turned away Army in its series.

Taking a look at the box score, it was the proverbial classic case of one team dominating the other everywhere but on the scoreboard.

Army out-gained OU in total yardage, 379-355. All but 40 of those yards were on the ground as the Sooners' defense, full of four and five-star athletes, could not stop Army's run game, which was getting yards in segments, even on third-down situations.

The stat of the night, however, was in time of possession. Army held the ball in regulation for nearly 45 minutes, and it was not unusual for the Black Knights to hover around 10 minutes on a particular series.

It was a fascinating situation that developed at Owen Field on Saturday night. Army, on paper, had no business pushing a College Football Playoff contender to overtime.

Yet again, it demonstrated the sometimes unpredictable nature of college football. On any given day, anything is possible.

That was definitely evident earlier in the day when a winless Old Dominion team shocked a ranked Virginia Tech squad. And Army's game at mighty Oklahoma was more proof.

Even though the Black Knights didn't win on the scoreboard, they were still winners. OU fans also appreciated that, as they gave the Army players a standing ovation when they left the field.

But the biggest impact Army made in Norman, Okla., didn't actually happen on the field. It happened well after the game was over and the fans were on their way home; not to mention, after I had already arrived in Wyoming.

Someone on the Army staff took a photo of the visitor's locker room as the team departed for the airport and put it on social media. It was completely spotless.

No dirty towels or uniforms littered the floor. No hangers on the lockers. No tape or scraps of paper all over the place. If one of the players had thrown a helmet through a wall in frustration, no doubt the team would have found a way to fix it pronto.

Instead, the Black Knights left the locker room the same way they found it when they arrived the day before.

That's pure class. And it made Army an even bigger winner, and if people weren't rooting for them before, they're going to have a lot more fans from here on out.

Just another reason why college football continues its knack of providing special moments.