WEST POINT, N.Y. — Army star quarterback Bryson Daily will miss Saturday's game against Air Force due to an undisclosed injury/illness, Army officials told ESPN.

With Daily out, junior Dewayne Coleman will step in at quarterback and make his first career start.

At this point, there is no timetable for how long Daily will be out, but Army officials do not believe this is a season-ending setback.

Daily, one of four team captains, was Army's starting quarterback the past two seasons and the key cog in a Black Knights offense that posted more than 400 yards of total offense in all seven games this season.

He leads the nation with 19 rushing touchdowns and leads all FBS quarterbacks with 909 rushing yards. He couldn't train this week.

The No. 21 Black Knights had a bye last weekend after defeating East Carolina 45-28 on Oct. 19 to win their seventh straight game this season.

In the win over East Carolina, Daily carried the ball 31 times for a career-high 171 yards and accounted for six touchdowns (five rushing, one passing). The 6-foot, 221-pound senior has already set the Army single-season record for touchdowns (26) and rushing touchdowns in seven games.

Army is off to its best start in nearly 30 years and will be one of the top contenders for the Group of 5 spot in the College Football Playoff if the Black Knights can win the American Athletic Conference championship. Army (7-0, 6-0) travels to North Texas next week for an AAC contest. The Black Knights receive a bye week on November 16th and then face Notre Dame on November 23rd at Yankee Stadium.