A sportsman is a man who, every now and then, simply has to go out and kill something. Not that he's cruel. He wouldn't hurt a fly. It's not big enough.

-Leacock, Stephen Butler
  My Remarkable Uncle.

Nosportsmanwantstokill a foxor thepheasant as Iwant to kill him when I see him doing it.

-Shaw, George Bernard
Quoted in ColinJarmanThe Guinness Dictionary of Sports Quotations (1990).

But he was never, well, What I call A Sportsman: For forty days He went out into the desert öAnd never shot anything.

-Sitwell, Sir (Francis) Osbert
  Of Jesus Christ.'Old Fashioned Sportsmen'.