[1] He was a member of the South African Sevens team that won a bronze medal at the 2016 Summer Olympics.

Sage was one of a number of South Africans that moved to Perth prior to the 2014 season to join the Force and he was included in their Wider Training Group for the 2014 Super Rugby season.

[4] He was named as a member of extended training squad for the side prepared as they for 2016 Summer Olympics[5] He was called in as injury cover for the 2015 South Africa Sevens[6] and subsequently included in the final squad for the event.

[7] Sage was included in a 12-man squad for the 2016 Summer Olympics in Rio de Janeiro.

His younger brother Jarryd is also a professional rugby union player.