According to the squad list on AFC website, Nguyen Hoang Helio, a naturalized player, is not registered for AFC Cup by SLNA. Helio is considered the most important player in SLNA defence. I can understand that SLNA wants to keep one or two of their key players fit for V-League. In replacement of the Brazil-born player, Cameroonian defender Thierry Ngale is registered. Note that Ngale is not even registered for V-League 2011.