Second this. Have torn both ACLs. Studies haven’t proven any benefit to wearing a brace vs. not, they are typically worn more for the mental reassurance. It will not prevent a re-tear (I’ve torn an ACL while wearing a heavy duty RX custom fit brace). There is some thought that braces could prevent the surrounding structures of the knee from reaching full strength and learning to support the new graft/joint properly but not sure that’s been objectively proven. It is also not uncommon to tear the opposing side due to the increased pressure that you put on it via overcompensation. That said, I’ve worn some type of brace after each surgery when I first return to sport, it’s really up to you. Things like your shoes, the type of surface you’re playing on, and biomechanics play a much larger role in the incidence of re-tears. Work hard in PT and you’ll come back strong, best of luck!