Then he entered Unnam High School, winning the top scorer award in a couple of national competitions.

In the pre-season, Incheon sold its franchise star striker Bang Seung-Hwan to Jeju United.

[2] In July 2011, Yoo signed a new contract with the Asian club of the century, Al Hilal in Saudi Arabia, running until 2014.

On 22 June 2013, Al Hilal announced that Yoo had agreed on a transfer to a Russian Premier League side FC Rostov.

[5] On 3 June 2009, Yoo played his first senior game for the South Korea national team against Oman, as a second-half substitute.