Analysis of information sources in references of the Wikipedia article "Play (Super Junior album)" in English language version.
Originally, the act had planned to return as a seven-piece unit: Leeteuk, Heechul, Yesung, Shindong, Eunhyuk, Donghae and Siwon. But Siwon, surnamed Choi, decided to sit out the group's promotions for "Play" after coming under fire over the death of a local businesswoman who died upon being attacked by his family's dog.