Colorado has lost another quarterback.
Third-year sophomore John Schrock has decided to give up football and focus more of his time on school, head coach Mike MacIntyre said on Saturday.
Schrock plans to attend medical school after completing his undergraduate degree in integrative physiology. He plans to stay at CU as a student.
"It was a tough decision for John as he does love football, but we talked and he is serious about becoming a doctor," MacIntyre said. "He decided it was in his best interests to leave the team to concentrate on his academics. He is a fine young man and I think he will be successful in his pursuits."
A native of Kansas City, Kan., Schrock is the third quarterback to leave the team since the end of spring drills in April.
Nick Hirschman decided to transfer to Akron, where he plans to play football and hopes to earn a starting job. Last week, redshirt freshman Shane Dillon announced he is leaving CU and plans to pursue playing basketball at another school.
The Buffs also lost senior Jordan Webb, who started the first nine games in 2012, to a knee injury during the spring. Webb is hoping to return at some point this season, but certainly won't be ready to compete for the starting quarterback job when camp opens next month.
The 6-foot-4, 220-pound Schrock was a walk-on from Shawnee Mission East High School in Kansas City. He has been a valuable member of scout team in both of his seasons in the program and was expected to give the Buffs some good depth under center this year.
He played in two games late last season, completing the only pass he threw, for 7 yards. He also ran once for a 1-yard loss.
During the four main scrimmages this past spring, Schrock went 13-for-22 for 124 yards and two interceptions.
Schrock's departure leaves CU with just four healthy quarterbacks going into fall camp.
Junior Connor Wood is listed atop the depth chart after a solid performance in the spring. Wood has also been named a captain and has taken on a leadership role for the team over the summer. Wood, who is 6-3, 230 pounds, started one game in 2012 and completed 21-of-42 passes for 265 yards, one touchdown and four interceptions last season.
Sophomore Stevie Joe Dorman is the only other quarterback who went through spring drills with the team. The 6-2, 220-pounder is entering his third season at CU.
Junior college transfer Jordan Gehrke and true freshman Sefo Liufau joined the program this summer. Both are expected to battle Wood for the starting job this fall.
Gehrke is a 6-2, 190-pound transfer from Scottsdale (Ariz.) Community College. Last year at Scottsdale, he completed 174 of 366 passes for 2,388 yards, 22 touchdowns and 14 interceptions. He has four years to use three years of eligibility.
Liufau is hoping to become the first true freshman in CU history to open the season as the starter. As a senior at Bellarmine Prep in Tacoma, Wash., he completed 193 of 280 passes for 2,518 yards with 24 touchdowns and only five interceptions. He also ran for 291 yard and eight touchdowns.
MacIntyre has said he will open the competition for the starting job to all of his quarterbacks.
Follow Brian on Twitter: