The word "warmup" means to prepare your body or muscles before doing physical activities, like stretching or light exercises, to prevent injuries and perform better. Full definition
Karan Higdon, who rolled his ankle against Maryland, is dressed for warmups for today's big showdown with Wisconsin: (diehardsport.com)
The New York Liberty, Phoenix Mercury, Indiana Fever and their players were fined for wearing shirts during warmups in response to the recent deaths of Alton Sterling and Philando Castile, and five Dallas police officers killed during a protest rally. (sbnation.com)
Last season my brothers and I counted as Luke hit 17 shots in a row in warmups before a game with the Bullets. (si.com)