EE was removing a roller on UG belt conveyor, right hand was on top of the structure rail. As EE was pushing the roller with EE's left hand, the roller slipped & rolled onto EE's little finger of EE's right hand, pinching/cutting the tip of the finger. EE wearing gloves at the time of injury. EE taken to clinic & received 4 stitches, antibiotic, pain med & placed on restrictions.