Getty Images Cornerbacks Greg Newsome II and Martin Emerson Jr. of the Cleveland Browns. Cleveland Browns cornerback Martin Emerson Jr. was carted off the practice field Tuesday with what appears to be a significant Achilles injury that could sideline him for the season. Emerson went down during a 7-on-7 drill and was visibly emotional as teammates consoled him before he was taken off the field. The Browns did not provide an immediate update following practice, but NFL Network’s Mike Garafolo