There are seven players on each team; One seeker, one keeper, two beaters and three chasers.
The seeker catches the snitch.
The keeper tries to block the other team from scoring a point.
The beaters hit the bludgers.
The chasers score the points.
quiditch
Harry Potter is an avid Quidditch Player. He also likes playing wizard chess with Ron Weasley.
The dangerous sport (from Harry Potter) is spelled quidditch.
quiditch
Harry Potter's "position in quidditch" was the seeker on the Gryffindor team.
Keeper
2 beaters 1 keeper 1 seeker 3 chasers
Harry Potter was a wizard
the first snitch he caught in his first quiditch game.
for an early quiditch practice
ron had been named the new keeper of the quiditch team
There is no such person.