J.J. McCarthy Joins Giants, Role Unclear

Coach John Harbaugh has confirmed that Jameis Winston will start at quarterback Sunday against Arizona, but the Giants have not announced who will back him up. McCarthy or practice squad QB Jake Haener could serve as the backup. amunra.qpon

The Giants acquired McCarthy after losing Jaxson Dart and linebacker Brian Burns to season-ending knee injuries, suggesting the team believes he can make a difference. "Very talented player (who) is going to make us a stronger football team," Harbaugh said.