Ex-USC football coach Steve Sarkisian is a changed man -- sober, happy and excited about his new gig with FS1 ... but tells TMZ Sports he's still open to coaching college football again.
We got a slim, trim Sark out at LAX moments ago -- who confirmed he'll be part of FS1's college football team this season -- and says he's fired up about being around the game again.
But his transition into broadcasting doesn't mean he's closed the door on a return to the sidelines -- telling us he still loves coaching and would consider reigniting his career.
The most important part of the video ... Sark says he's had a chance to reevaluate his life after coming to terms with his alcohol problem and seems to be moving in a very positive direction.
"Life's good," Sark said ... "I'm just taking some time to focus on myself and to do the things necessary in all aspects of my life ... I feel really good."
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