Update: UCF quarterback McKenzie Milton had successful surgery in a Tampa hospital after being carted off the field against South Florida on Friday following a gruesome leg injury, the quarterback's father Mark revealed to ESPN on Saturday. While the exact nature of Milton's injury and the subsequent surgery have not yet been officially disclosed, doctors worked to stabilize Milton's knee while working on other complications. Per the Milton family, all information related to the injury is currently private. 

Original story

UCF quarterback McKenzie Milton was carted off the field after suffering what appears to have been a severe leg injury during the second quarter of a game against South Florida. Milton was surrounded by teammates and coaches from both teams while being attended to on the field by medical personnel.

Milton suffered the injury on a third-down play. After scrambling to pick up a first down on third-and-7, Milton took a hit to the right leg from a defender making the tackle. While there is no official word on the injury, judging by what could be seen via television cameras during the play and afterward, it appears to be a serious injury for Milton.

The junior quarterback is one of the most prolific in program history after starting his career under the tutelage of now Nebraska coach Scott Frost. He has thrown for 8,597 yards, 71 touchdowns and 21 interceptions. Freshman Darriel Mack Jr. came on in relief of Milton. Mack started in place of the Hawaiian against East Carolina after Milton suffered an ankle injury earlier in the season.

The Knights went on to beat South Florida, 38-10, to extend their winning streak to 24 games and are hoping to reach a New Year's Six bowl for the second consecutive year.