New York Giants' cornerback Terrell Thomas, who missed all of last season after suffering a torn ACL during a preseason game, was sent to the Hospital For Special Surgery Monday when he reported swelling in the surgically-repaired knee.

Thomas slipped and fell awkwardly during a coverage drill on Sunday morning. He had his knee wrapped in ice following practice, but there was no thought at that time that he had re-injured the knee.

"He walked up to me after practice, he thought he felt good," Giants coach Tom Coughlin said after Monday's practice. "He just walked up to me and said, 'I slipped.' "

"I don't like the fact it's swollen, but I'm not a doctor."

Thomas has torn the same ACL twice -- once in college and once with the Giants.

Other Injuries

Third-round pick Jayron Hosley left practice after falling during 1-on-1 drills. Coughlin said Hosley suffered a laceration below his knee that required stitches.

Lineabackers Michael Boley and Keith Rivers did not practice again due to hamstring injuries. Rivers was at Monday's workout, but Boley had apparently gone for tests to determine the severity of his injury. Da'Rel Scott (ankle) returned to practice. Defensive end Justin Trattou has what Coughlin called a "lateral" sprain of his left ankle. Trattou is in a walking boot and Coughlin said "I think we'll get him back."