Browns Pro Bowl running back Nick Chubb is undergoing evaluation for a possible concussion.
Chubb walked off the field with a trainer Monday midway through the rainy practice. His last play of the day saw him catch a screen pass during a team period.
Chubb is coming off one of the best seasons by a running back in Browns franchise history. He rushed for 1,494 yards — second-most in the NFL, fourth-most in franchise history — and eight touchdowns.
