Matt Leinart is speaking out on Steve Sarkisian -- his QB coach during his days at USC -- asking people to support his friend because "he needs help."
Leinart went to Twitter and wrote, "Sark is a friend and he needs help. I ask everyone instead of the criticism show your support for him. This is much bigger than football!"
Leinart attended USC from 2001 to 2005 -- and Sark was the QB coach from 2001 to 2003 and returned to the school in 2005.