half-back:
(plural: ‘half-backs‘; for the right pronunciation, please click here)
(in games like football) a player or position on the field between the centre and the back players,

rugby half-back ready in position
Big Brendan is our high school football team’s half-back, and with him in position there is no way an opponent player can get through.
The job of a halfback in soccer, the English football game, is to defend the goals, and to act as an important link between the offensive and defensive ends of the pitch.
In the game of rugby, the American football, the half-back, also known as ‘scrum-half’, has much more responsibility as this position, once the ball is in the opposition’s hands, is meant to hound the opposition half-back and provide covering defence.
