Tennessee Titans quarterback Vince Young may be growing tired of NFL stardom, according to his mother.

Her comments come less than two days after the Titans called Nashville police to locate Vince Young, who left his family's house on Monday night without his mobile phone prompting fears about his emotional state.

Young's agent, Major Adams, said that his client simply went to a friend's house to watch television, while the Titans have also downplayed the incident, claiming the concerns expressed by Young's family were "unfounded."

But in Wednesday's edition of The Tennessean, Felicia Young told the newspaper that her son is "hurting inside and out" as a result of the negative response he has received from Titans fans after they booed him loudly during Sunday's season-opening 17-10 victory over the Jacksonville Jaguars.

"What would you think, if you were tired of being ridiculed and persecuted and talked about and not being treated very well, what would you do?

What kind of decision would you make?" Felicia Young said.

"He may not want to deal with it (all), but you have to get to that point before you make that decision first.

"But we're not talking about football right now. We're talking about what would make him happy, and that is the most important thing."

Vince Young's mental stability has been an issue since Sunday, when he was seemingly reluctant to return to the field after being jeered by the fans.

The third-year quarterback eventually went back to the huddle after speaking n the sideline with coach Jeff Fisher.

Young, 25, also suffered a sprained ligament in his left knee during the fourth quarter of the contest and was replaced by Kerry Collins, who orchestrated Tennessee's go-ahead touchdown drive.

After hesitating to get his knee examined, Young met with a psychologist, Fisher and a team official at his home on Monday.

The psychologist, Dr Sheila Peters, claimed that Young was depressed and even expressed concern for his safety.

But Felicia Young believes her son simply needs some space.

"I think he has done pretty well up to this point," she added. "But it is hard, all he is going through right now.

"He's hurting inside and out. But he will be fine if people are prayerful and help my baby boy out.

"He is a young man. He just needs a lot of love and support. Vince is going to be okay. We are just going to try and give him some space."

Young eventually underwent an MRI on Tuesday and will be sidelined for between two and four weeks.

The news of the injury came less than 24 hours after Nashville police were asked to search for Young when the Titans received a phone call from family members concerned about his emotional state.

Young abruptly left his Williamson County home at approximately 7pm local time on Monday night without his mobile phone, prompting his family to contact the Titans.

With help from the police, the Titans learned that Young was at a friend's house and were eventually able to contact him.

He then met with Fisher at team headquarters at approximately 11:30pm. According to police, Young drove himself home after the meeting.

After receiving the call from Young's family, Fisher contacted the Nashville police to inform them of the situation.

"Not having all the facts available to us and approaching the matter prudently, we contacted Metro Police to make them aware of the situation and asked for their assistance in locating Vince," the Titans said in a statement released on Tuesday morning.

"He was located at a friend's house, where we made contact with him.

"He then came to the practice facility where it was determined that those initial concerns by his friends and family were unfounded and he returned home without incident."

Young, who was also hindered by a hamstring injury on Sunday, hurt his knee after colliding with linebacker Daryl Smith.

Prior to being injured, Young completed just 12-of-22 passes for 110 yards with one touchdown and two interceptions.

Midway through the fourth quarter, after his second pick, Young headed to the sideline amid a chorus of boos from the crowd at LP Field.