He joined Featherstone on a junior scholarship when he was 13 but also played for Castleford Panthers until he was 16 when he signed exclusively with Featherstone.
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request. ### Instruction: List the MITRE techniques contained in the text. ### Input: He joined Featherstone on a junior scholarship when he was 13 but also played for Castleford Panthers until he was 16 when he signed exclusively with Featherstone. ### Response: .