Antonio Cromartie doing sprints Dan Leberfeld

East Rutherford – Jets cornerback Antonio Cromartie, who hurt his knee in practice on Thursday, is doing sprints on the field at MetLife Stadium.

He ran down the sideline – 100 yards, and then he did a drill where he ran slow and lifted his legs up high.

Now he’s doing leg lifts.

He doesn’t seem to be favoring his injured knee.