Despite the horrifying images that came out of Vontae Davis' arrest earlier this month ... his older bro, Vernon Davis, tells TMZ Sports the ex-NFL star is now "doing well" and taking steps to remedy a "very tough situation."
Vontae was put into custody in Broward County, Fla. on Feb. 4 after cops say he drunkenly crashed his Tesla into the back of a disabled Toyota truck. In photos and video we obtained from the scene, you can see Vernon's younger brother appeared to be asleep on the highway following the accident -- and then seemed to struggle to stay awake during ensuing questioning.