The incident happened when Yoong accidentally squeezed and grabbed Taulava's private parts in defense of their team.
Asi Taulava, through his Twitter fan page apologized for what happened. As quoted,
"Would like to apologize to everybody that watched the game today for loosing my cool! No excuses for my action an I'm sorry."
Meanwhile, here is the video capture of Asi Taulava while punching the Malaysian player during 2011's Jones Cup
Video courtesy of nosebleedz