Warming-up Hockey (WUP) is an effective injury prevention programme to reduce acute field hockey injuries among youth. This paper describes the process evaluation of the nationwide scaling-up. We conducted a mixed-methods process evaluation from September 2019 to December 2020 according to the Reach. Effectiveness. https://safeersappliancers.shop/product-category/zanussi-zcg63050wa-60cm-double-gas-cooker-with-electric-grill-white/