Vince Young, quarterback for the Tennessee Titans, left his house "abruptly" and did not take his cellphone sparking concern from his family and touching off a chain of phone calls that eventually involved the Nashville Police Department.
Family members of the former Texas Longhorn notified team officials shortly after his departure from the family home because they were concerned for his state of mind.
The team called coach Jeff Fisher, who eventually asked the police to help in locating Young.
Young was later located at a friend's house, later visited the team's practice facility, and then returned home in his own car.
The Titans won their opening game of the season over the Jacksonville Jaguars on Sunday, but Young threw two interceptions in the game and left before it was over after injurying his left knee.
An MRI was performed on the knee Monday and the results have yet to be released, but the team has already stated that Young is expected to miss atleast two weeks.