Manchester United midfielder Park Ji-sung scored as South Korea beat fellow World Cup qualifiers Japan in a friendly international. Both countries are facing difficult tasks in South Africa next month, having been placed in strong groups. Japan must play Cameroon, Denmark and Holland in Group E, while South Korea meet Argentina, Greece and Nigeria in Group B. The Koreans can count on the undoubted quality of Reds midfielder Park Ji-sung and he opened the scoring in the sixth minute in Saitama, lashing the ball into the bottom left corner from the edge of the penalty area after a bustling run. Monaco forward Park Chu-young came off the bench and won the penalty which he coolly fired into the bottom left corner for the clinching goal at the end of the second half.Japan play England next, in Graz on Sunday, and on the same day South Korea take on Belarus in Kufstein. Do you think Park had a good season for United? Have your say.