North Carolina stages its annual spring game on April 12.

Consider it the biggest scrimmage of Mentor graduate Mitch Trubisky's football career.

Trubisky is involved in an ultra-competitive race with Marquise Williams to become North Carolina's starting quarterback. Trubisky and Williams are fighting for the job vacated by Bryn Renner, who should land in an NFL training camp this summer.

The winner of the quarterback derby could be in position to become a multi-year starter for the Tar Heels. Trubisky is a redshirt freshman, Williams is a junior. The loser might have to wait for an injury to receive a chance to operate the first-team offense.

Williams started the final five games last season after Renner suffered a shoulder injury. The Tar Heels went 4-1 with Williams as the starter and defeated Cincinnati in the Belk Bowl. Williams' 2013 statistics were promising: 104-of-187 passing for 1,527 yards.

Trubisky has displayed promise his entire career and enrolled early at North Carolina to participate in 2013 spring drills. As expected, he redshirted last season despite Renner's injury. North Carolina exhausted significant recruiting resources to lure Trubisky, the 2012 Mr. Ohio Football, to Chapel Hill, where he has been reunited with former Mentor teammate Brandon Fritts, a 2014 early enrollee.

North Carolina coach Larry Fedora told The Charlotte Observer that Trubisky and Williams are splitting first-team reps this spring. The Tar Heels will receive a third highly regarded quarterback when four-star recruit Caleb Henderson arrives this summer.

For those who want to evaluate Trubisky and Williams for themselves, ESPN3.com will air North Carolina's spring game on April 12. The scrimmage begins at 3 p.m. The first two quarters are 15 minutes and include normal clock stoppages. The clock will run continuously during the final two quarters.

-- Guy Cipriano | @newsheraldguy