Gong Yoo shows concern for Lee Dong Wook after hitting him behind the scenes of 'Goblin'

On January 13, tvN's 'Goblin' unveiled another behind-the-scenes video of bromance couple Lee Dong Wook and Gong Yoo!

They filmed the scene in which a god enters Sungjae's body. �Sungjae, who always is bright and cheery in the drama but suddenly turns sincere, stars to fly feet and fists at Gong Yoo. �Lee Dong Wook holds Gong Yoo back, saying, "Why are you doing this to the kid? �He did nothing wrong."

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While filming this, the two engage in a physical fight. �When Gong Yoo lifts both feet to do a high kick, he hit the back of his head against Lee Dong Wook's chin. �Gong Yoo, taken aback, insisted, "I didn't intend to do that but Lee Dong Wook said from behind me, 'I'll hold you, so jump,'" making everyone laugh. �

He then made sure Lee Dong Wook was fine, and Lee Dong Wook assured he was all right.