Air Force wide receiver Jalen Robinette will face the clock Saturday, and potentially alter his future.
Robinette will work out at the NFL Scouting Combine in Indianapolis, with live coverage of the event starting at 7 a.m.
Prospects are tested in the 40-yard dash - widely considered the biggest test for Robinette, as many have doubted his top-end speed - as well as vertical jump, broad jump, 3 cone drill and shuttle run.
If Robinette can post a quality 40-yard dash - particularly anything in the low 4.50s or high 4.40s - he could vault into the top three or four rounds of April's NFL Draft according to multiple mock draft projections.
Robinette performed 13 repetitions of 225 pounds on the bench press on Friday, which placed him 16th out of 58 wide receivers at the event.
The wide receivers will be tested along with the quarterbacks and tight ends on Saturday.
The event is broadcast on the NFL Network, and available via NFL.com and connected TV devices (XBox, Apple TV, PS4, Roku, Amazon Fire TV and Android TV).
This is the first year that academy players have entered the draft season under a new Department of Defense policy to immediately pursue professional athletics instead of serving at least two years on active duty.
His Falcons teammates say they plan to watch and cheer on Robinette, who measured 6-foot-3, 220 pounds at the Combine.
"I love it. Every time I see Jalen I say, 'What's up big time?'" AFA quarterback Arion Worthman said. "He's earned it. He's earned the opportunity to play. It's just a matter of who's going to give him a chance. He's a hard worker. I'm real excited for him."