[4] For a long time he played mixed doubles with Kim Min-jung, but later switched partners to play with Chang Ye-na, starting in 2011.

Starting in late 2013, his men's doubles partner was Lee Yong-dae.

Yoo was among 4 players reported to be retiring and hanging up his national team jersey after the Rio Olympics[5] but during the Korea Open that September, it was revealed that he would be continuing to play on the national team after his partner Lee Yong-dae retired.

[6] After he and Lee won the Korea Open title, Yoo played an additional 9 international ranking events but his name was finally removed from the Korean national team list a few weeks after the 2017 Singapore Open.

A season of Superseries features twelve tournaments around the world, which introduced since 2011,[9] with successful players invited to the Superseries Finals held at the year end.