"Since he's come back from this rehab, he's had pain in both knees,” head athletic trainer Rick Burkholder said. “It's gone back and forth and we tried to get a handle on it. After the Oakland game, he had more discomfort than he [had been] having, so that's when we were going back and forth with practice, partial practice, no practice.”
Charles went to see Andrews on Monday.
“Dr. Andrews decided that he would do an exploratory surgery today on his right knee, which is [where Charles had] the most recent ACL surgery. It's thought that he might have a meniscus tear in that knee.