David Ash's last football game was Aug. 30, 2014 vs. North Texas.

But the former Longhorns QB, who retired in Sept. 2014 after a string of concussions, hasn't set down his helmet for good yet. Ash has been medically cleared to return to football, per a UT release Thursday afternoon.

And he'll try out his skills at the Longhorns' Pro Day in Austin on March 28.

Texas running back D'Onta Foreman, projected as one of the top running backs in the 2017 draft, will participate in the UT Pro Day then as well.

Ash's problem with concussions dates back before his North Texas ding that sidelined him and led to his eventual retirement, announced by then-Texas coach Charlie Strong on Sept. 17, 2014.

Ash had earned a medical redshirt in 2013 after missing 10 games because of concussions but rebounded to become Texas' starter for the 2014 season. In the 2014 season opener against North Texas, he completed 19-of-34 passes for 190 yards, as well as both a passing and rushing touchdown.

But later that night, Ash called the trainers with concussion-like symptoms, which sidelined him for Texas' next two games.

"We're always concerned about a young man's health and will never jeopardize his health for the good of a football team," Strong said after the North Texas game, when Ash was out "indefinitely."

"It's a very tough call for him," Strong added at the time. "He's very emotional -- done a lot for this program, been a major part of this University. Any player you'd like to finish his career -- that's why they sign up to be a part of something special. What's important is that he feels a part of this and [doesn't feel] like he's been pushed aside."

It wasn't long before the Texas QB called it quits, finishing his bachelor's in corporate communications followed by a master's in finance at Texas. He worked out with the UT baseball team while at the university as well but never formally joined the team. Since graduating, Ash has worked for Fairway Independent Mortgage in Round Rock, according to the company's website.

"There's so much good life out there besides football," Ash said in his retirement speech in 2014. "I'm really excited to put time into those things. I don't have to worry about my head anymore or getting hit."

He also said injuries hadn't caused much memory loss or cognitive disability and the little he had, he regained.

"Yes, I've always been this slow," Ash said.

Ash started 22 games across his career at Texas, completing 62.8 percent of his passes for 31 touchdowns to 18 interceptions. His 4,728 career passing yards ranked eight all-time for the program; his 5,107 yards of total offenses slot 10th.

Quarterback Tyrone Swoopes, who declared for the 2017 NFL Draft as a tight end, took over for Ash as Texas' revolving door behind center began to open and close.

Swoopes eventually handed the reins to Denton Guyer product Jerrod Heard, who lost the starting job to freshman Shane Buechele in 2016. Heard moved to receiver for 2016, while Swoopes specialized in short-yardage packages.

Buechele, who started all 12 games as a freshman, completed 236 of 391 passes for 2,958 yards and 21 touchdowns as a freshman. New Texas coach Tom Herman has said no starter automatically earns his position for 2017, leaving Buechele in competition to protect his starting job as a sophomore.

"Is he going to push Shane? I hope so," Herman said of QB Sam Ehlinger, who enrolled at Texas this spring. "I hope everybody pushes everybody. There are no starters on this team. Zero. None. It doesn't exist. There is no depth chart, there are no starters. And I've told the team this ad nauseam."

Ehlinger, a Class of 2017 signee from Austin Westlake, will look to challenge Buechele. Ehlinger was the 2015 Texas State Player of the Year as a junior.

Twitter: @JoriEpstein