. "Keeper is one of the positions on a Quidditch team. The Keeper's role is to try to prevent the opposing team's Chasers from scoring by keeping the Quaffle from going through the goal hoops."@en . "Keeper (Harry Potter)"@en . . "Keeper is one of the positions on a Quidditch team. The Keeper's role is to try to prevent the opposing team's Chasers from scoring by keeping the Quaffle from going through the goal hoops."@en .