A CONTRACTOR HAD WASHED A 980 LOADER IN SHOP AND LEFT WITHOUT CLEANING THE FLOOR. A TRACTOR WAS PULLED IN WITH A FLAT & WHILE EE WAS CHANGING TIRE HE SLIPPED ON GREASE ON CONCRETE & FELL LANDI NG ON HIS RIGHT SHOULDER AREA. EE WAS TAKEN TO DR THAT DAY. STILL EXPERIENCING PAIN & HAD MRI 5/11. SAW NEW DR ON 5/22 & WAS INSTRUCTED TO GO TO PHYSICAL THERAPY. 7000-1/THERAPY. NO LOST TIME