GLENDALE, Ariz. - For the second consecutive spring, the Dodgers are approaching Hyun-Jin Ryu with wariness and cautious optimism.Their No. 3 starter in 2013 and 2014, Ryu has had more surgeries (one each on his shoulder and elbow) than starts (one low-velocity, poor-quality outing of 4 2/3 innings in July) in the two years since.