The athlete who always gives 110% during practice when it's not necessary, just to show up their teammates. Is usually the worst player on the team who never gets any playing time, only in practice. Generally unliked by their teammates for obvious reasons.
Olivia: "Hey Rudy
, take it down a peg it's not even a game
. No need to be a practice hero
Emily: "But practice is the only time I get to play
Chelsea: "Yeah, Helen Keller
sees more playing time than you.."