Questions & Answers about Spelarna är här allihop.
Because -na is the definite plural ending.
- spelare = player / players (the singular and plural forms are the same)
- spelarna = the players
So spelarna does not just mean players in general. It means a specific group: the players.
Yes. Spelare is one of many Swedish nouns that have the same form in the singular and plural indefinite.
- en spelare = a player
- spelare = players
- spelaren = the player
- spelarna = the players
This is very common with nouns ending in -are, such as:
- en lärare = a teacher
- lärare = teachers
- läraren = the teacher
- lärarna = the teachers