A closure assembly comprising an article with a neck and a cap. The cap includes a tamper-evident ring having at least two ring segments, each ring segment having a base portion and an indicator portion. The article has for each segment a boss with a catch portion having a recess. Upon rotating the cap in an opening direction by the user from its closed position for the first time the head end of the indicator portion enters the recess of the catch portion and is then prevented from further rotation of the cap in opening direction, while the catch portion outer wall comes in the spacing between the spaced apart head end and trailing end, the frangible bridge between the head end and trailing end breaking and the indicator portion bending, folding, and/or buckling while being subjected to permanent deformation upon further rotation of the cap in opening direction.