Yoo Jae Suk's manners have once again left fans in awe.

The most recent episode of 'Running Man' was the London Olympic special, which held a competition between the members of 'Running Man' and idol members such as,�Super Junior's Eunhyuk, 2PM's Nichkhun, Mblaq's Lee Joon, CN Blue's Yong Hwa, ZE:A's Siwan, T-ara's Eun Jung, and B2st's Doo Joon.

During the relay race, Yoo Jae Suk showed his concern for Eunhyuk as he repeated, "Be careful. Be careful!", to Eun Hyuk who was running around a curve. Yoo Jae Suk's concern for the other person even during a competition left fans in awe.

 

Source + image via Naver