EE STATED THAT DURING THE SHIFT ON 6/11/03 HIS LEFT KNEE BEGAN HURTING AS HE OPERATED THE ROOF BOLTING MACHINE. AT AROUND 2PM THE FOLLOWING MORNING HE DISCOVERED HIS KNEE WAS SWELLED & HE WEN T TO THE ER WHERE HE WAS TOLD TO SEE HIS FAMILY DR. HE SAW ANOTHER DR ON 6/13/03 WHERE HE WAS TOLD HE HAD WATER ON THE KNEE