Ryu (shoulder) threw change-ups for the first time since surgery in a bullpen session Friday, Bill Plunkett of the Orange County Register reports.
Ryu hasn't started throwing breaking balls yet, but his recovery appears to be going according to plan and he is still expected to return around mid-April. The 28-year-old had a 3.38 ERA over 26 games started in 2014 and will look to pick up where he left off once healthy.