Big 12 NFL Pro Day live updates: How Oklahoma State football players fared on Day 1

FRISCO, Texas — Ten Oklahoma State football players were set to take part in the inaugural Big 12 NFL Pro Day at Ford Center at The Star, a multiple-day event which began Thursday. Receivers, tight ends and running backs were among the participants in Thursday's testing. Here's a look at how the former Cowboys performed:

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Defensive backs take the field

Following Elijah Collins' work with the small group of running backs, OSU's day was done at Big 12 Pro Day.

Collins ran well and handled his business in the receiving drills, looking fully healthy a few months removed from the ankle injury that limited him late last season. No official times have been released by the Big 12.

The final segment of the day has begun with a huge group of defensive backs. They've cycled through the bench press and are now taking their turns on the vertical leap.

Josiah Johnson shows off route running

As a former quarterback, Josiah Johnson has always had a visual understanding of a receiver’s routes. So as he transitioned to tight end in recent years — first at UMass, then last season at OSU — he found he had a knack for it.

The 6-foot-5, 235-pound tight end was pleased with his footwork on Thursday.

“I might not be the fastest on the 40, but I feel like I run a pretty good route, I’ve got some pretty good ball skills, so I hope I showed that,” he said. “Then the film will show the blocking. I pride myself in trying to be a tough guy.

“This last year at Oklahoma State was my first year being a full tight end, and so I’m excited to keep developing in it. I know there’s a lot more I can learn, so I’m excited to keep learning it.”

Braden Cassity doing dual work

Braden Cassity stopped by the interview area, but his day is not yet finished. Though all the tight ends have completed their workouts, he’s getting the opportunity to do fullback drills.

“I think I’m the only one,” Cassity said. “It’s exciting. I understand my role and I think that’s super-important. Being able to fit that role and show what I can do in that role is huge, so I’m happy they’re letting me do both.

“I”m not as tall as some of these other tight ends, but I can keep up with them. I wanted to showcase my run blocking a little bit. Got to catch some balls, too. I wanted to show that I can catch, despite what a stat sheet might say.”

Leon Johnson III runs 4.50-second 40

Oklahoma State receiver Leon Johnson III had a goal of a 4.4-second 40-yard dash time. Even if it was a 4.49, he’d be happy.

But the former Division III player says he can live with missing his goal by one-hundredth of a second.

The 6-foot-5, 217-pound Johnson said it was reported to him that he ran a 4.50 in the 40. He also had a 35-inch vertical leap and 10 feet, 10 inches on the broad jump. Only four receivers at the NFL Scouting Combine had a longer broad jump than 10-10.

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This article originally appeared on Oklahoman: Big 12 NFL Pro Day live updates: How former OSU football players fare