NLEX Road Warriors star guard Kiefer Ravena and the all-amateur Gilas Pilipinas squad that competed in the November window of the FIBA Asia Cup Qualifiers were the first to enter the “Calambubble” at the Inspire Sports Academy in Laguna.

Samahang Basketbol ng Pilipinas (SBP) Special Assistant to the President Ryan Gregorio announced the development on Sunday.