EMPLOYEE STATED EE WAS CARRYING A TOP ROLLER WHEN EE TRIPPED OVER SOME LOOSE CABLE BOLTS AND FELL INTO THE DIESEL MANTRIP. EE'S LEFT INDEX FINGER WAS CAUGHT BETWEEN THE ROLLER AND SIDE OF THE MANTRIP CAUSING A CUT AND ABRASION TO EE'S INDEX FINGER. EE HAD 3 SUTURES PUT IN EE'S LEFT INDEX FINGER.