It has not been a hugely convincing tournament so far from Jurgen Klinsmann's side, who still remain one of the favourites to lift the trophy.
After an opening win over Bahrain, Heung-min Son & Co. then drew with Jordan and Malaysia, moving through to the knockout stages as runners-up in Group E.
Saudi Arabia, managed by Roberto Mancini, have been more impressive, beating Thailand and Kyrgyzstan to qualify with a match to spare.
The winner of this match will face Australia in the quarter-finals.
Date, kick-off time and venue
Saudi Arabia vs South Korea is scheduled for a 4pm GMT kick-off today, Tuesday, January 30, 2024.
The match will take place at the Education City Stadium in Al Rayyan.
Where to watch Saudi Arabia vs South Korea
TV channel and live stream: In the UK, the game will be broadcast by TrillerTV, formerly FITE.
You can watch online via their website or app. The app can be cast from your phone to a compatible TV or with a compatible Smart TV through the Triller app.
The subscription channel costs £7.99 per month or £69.99 for a year. Both options come with a seven-day free trial.
Live blog: Follow all the action with Standard Sport's dedicated match blog.
Saudi Arabia vs South Korea team news
Saudi Arabia XI: Al Kassar; Al Tambkati, Lajami, Al Buhayi; Abdulhamid, N. Al Dawsari, Al Khaibari, Kanno, Al Burayk; S. Al Dawsari, Al Shehri
Subs: Al Yami, Najjar, Al Saluli, Al Sugor, Kadish, Al Muwallad, Ali, Al Naji, Al Malki, Al Brikan, Radif
South Korea XI: Jo Hyeon-woo; Kim Tae-hwan, Kim Min-jae, Kim Young-gwon, Kim Jin-su; Lee Kang-in, Hwang In-beom, Lee Jae-sung; Jeong Woo-yeong, Son Heung-min
Subs: Lee Ke-ji, Park Yong-woo, Hong Hyun-seok, Hwang Hee-chan, Cho Gue-sung, Song Bum-keun, Lee Soon-min, Park Jin-seop, Yang Hyun-jun, Oh Hyeon-gyu, Kim Ji-soo, Seol Young-woo
Saudi Arabia vs South Korea prediction
South Korea must improve from what they produced in the group stage, particularly at the back. No side who progressed through to the last-16 conceded more than the six goals they let in across their three matches.
They do though offer a real threat in attack and can be expected to step up now the serious business of the tournament has begun.
South Korea have reached at least the quarter-finals in each of the past seven Asian Cups, while Saudi Arabia have not made it to the last-eight since 2007. That experience could prove the difference.
South Korea to win, 2-1.
Head to head (h2h) history and results
South Korea are unbeaten in their last five meetings with the Saudis.
Saudi Arabia wins: 6
South Korea wins: 7
Saudi Arabia vs South Korea match odds
Saudi Arabia to qualify: 2/1
South Korea to qualify: 1/3
Odds via Betfair (subject to change).