Probable starting eleven:

Uruguay:
Muslera; M. Pereira, Lugano, Godin, Fucile; Perez, Arevalo, A. Pereira; Forlan; Suarez, Cavani

South Korea:
Jung Sung-Ryong; Cha Du-Ri, Cho Yong-Hyung, Lee Jung-Soo, Lee Young-Pyo; Park Ji-Sung, Kim Jung-Woo, Ki Sung-Yong, Lee Chung-Yong; Park Chu-Young, Lee Dong-Guk

Both coaches, Oscar Tabarez from Uruguay and Huh Jung-Moo from South Korea have no injury or suspension worries. Players have enough time to rest from group phase matches and I think we will see an interesting game today at Nelson Mandela Bay Stadium in Port Elizabeth. Even it is hard to predict the winner, my opinion is that Uruguay have bigger chances. Uruguay played better in first stage, they won twice and played draw against France in opening match. Here are the results:

Uruguay 1-0 Mexico (June 22)
Uruguay 3-0 South Africa (June 16)
Uruguay 0-0 France (June 11)

South Korea wasn't so impressive. One victory, one draw and one defeat was enough to qualify for second stage:

South Korea 2-2 Nigeria (June 22)
South Korea 1-4 Argentina (June 17)
South Korea 2-0 Greece (June 12)

For the first time in 20 years Uruguay reached the knockout stages of the World Cup. I am sure they are quality enough to progress for quarterfinal, maybe even more as next opponent will be USA or Ghana. South Korea isn't weak team, but Uruguay has two players able to make difference - Forlan from Atletico Madrid and Suarez from Ajax. I believe in them and I think Uruguay is better then South Korea.