Kobe Bryant fans have an opportunity to get their hands on a truly rare piece of memorabilia ... the Black Mamba's Staples Center locker -- and it could sell for over a million bucks!!
TMZ Sports has learned ... the locker -- which was set to be destroyed during renovations at the Staples Center in 2018 -- was saved by a maintenance worker who realized it belonged to the Hall of Famer.
The worker kept it in storage for years until an American collector, who had the locker nameplate, purchased it to reunite the two pieces.