The Bundesliga-based South Korean duo secured their top flight status for next season playing their part in goalless draws, while Lee Young-Pyo netted in the MLS
Son's Hamburg claimed a 0-0 draw at home to FSV Mainz, while Koo played his part as Augsburg grabbed a goalless draw away to fourth-placed Monchengladbach.
Hamburg are now up to 36 points, one point ahead of Augsburg in 14th and 15th respectively, while 16th-placed Koln are back on 30.
Meanwhile in USA's MLS, Lee Young-Pyo netted his first ever goal in the competition with the winner in a 1-0 triumph for Vancouver Whitecaps over Columbus Crew.
Lee, 35, whipped in a 74th-minute free-kick which looped over Columbus keeper Andy Gruenebaum and in for the winner. The Korean's boss Martin Rennie admitted the goal was a "little bit fortuitous".
Ji Dong-Won (Sunderland): Was an unused substitute in the 2-2 draw with Bolton.
Lee Chung-Yong (Bolton): Out injured (leg) but is back to training.
Park Chu-Young (Arsenal): Failed to make the squad in his side's 1-1 draw with Stoke City.
Park Ji-Sung (Manchester United): Scheduled to take on Manchester City on Monday.
|STAR OF THE WEEKEND
The veteran Korean full-back has won alot of praise during his time in Vancouver and capped that with his first goal for the club
Yu Tae-Sun (FSV Frankfurt): Started and played 71 minutes in the 1-0 loss to Paderborn.
Jung Jo-Gook (Nancy): Was a 69th-minute substitute in the 1-1 draw with Caen.
Suk Hyun-Jun (FC Groningen): Was a 77th-minute substitute in the 1-1 draw with De Graafschap on Friday.
Cha Du-Ri (Celtic): Was an unused substitute in the 3-0 victory over Rangers.
Ki Sung-Yueng (Celtic): Out injured, and will miss the rest of the season.
Park Joo-Ho (FC Basel): Played a full game in defence as his side clinched the title with a 3-1 victory over Lausanne.
Kim In-Sung (CSKA Moscow): Not in the squad for the 2-1 victory over Spartak Moscow.
Yoo Byung-Soo (Al Hilal): Was an unused substitute as his side reached the semifinals of the Champions Cup after a 1-1 draw with Al Ittihad completed an away goals win.
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