That is true,
N.Z. for instance, has a population of 4 million, yet are arguably the best rugby side in the world. They only play rugby really, cricket and football really don't feature.
( Anthropos Was making beer on, Mon 29 Jun 2009, 20:29, archived)

or tennis, or hockey, or golf, or crown green bowls

( Moon Girl Technologies horrendous beanbag, Mon 29 Jun 2009, 20:31, archived)