A post on its Facebook page said: "On Friday evening, our crew were sent to a patient who had suffered spinal injuries while playing rugby. Our team then flew him directly to Christchurch ... We wish him and his family all the best."
On Friday night, the only match at Park Island was a Senior Division 3 match between host club Napier Old Boys Marist and Maraenui.
Hawke's Bay Today understands that the injury did not result from a dangerous tackle.
One witness said it appeared the player had fallen awkwardly while trying to evade a tackle.
The Rugby Foundation was formed in 1986 by All Black and Hawke's Bay rugby great Kel Tremain and transport industry pioneer Hawke's Bay philanthropist Sir Russell Pettigrew to "assist areas of rugby in need."
It now works to ensure the message of safety first is front of mind for all rugby players, alongside the comprehensive support the foundation provides to all seriously injured rugby players, financially and emotionally, for life.
The Foundation coordinates and provides immediate and more long-term support to seriously injured players, in tandem with the clinical care provided by the New Zealand medical system and the ACC.