Kohn was optioned to Triple-A Gwinnett on Wednesday, David O'Brien of the Atlanta Journal-Constitution reports. Kohn appeared in six games with the big league club this stint, pitching 4.2 scoreless innings though he struggled with his command to the tune of a 4:6 K:BB ratio. Williams Perez was called up from Triple-A in a corresponding move, so Kohn will rejoin Gwinnett and serve as bullpen depth within the organization.