A tribute to the late Kobe and Gigi Bryant was defaced with graffiti ... with the mural becoming a canvas for an apparent beef between street artists.
The vandalism was spotted recently ... with a piece depicting the Lakers legend in uniform and kissing his young daughter on the cheek being covered in white paint and a graffiti tag.

In the top corner, where the original artist's name "Sloe Motions" appeared, it looks like someone scribbled out the tag and wrote "Keep running your mouth, p***y.