Spelaren är ung.

In Swedish, the definite article is usually added to the end of the noun as a suffix.

• spelare = player
• spelaren = the player

So instead of having a separate word like English the, Swedish often attaches it directly to the noun.

For this noun, the definite ending is -n.

The base form is spelare, which means player.

You can think of it like this:

• en spelare = a player
• spelaren = the player

So spelaren is the definite singular form of spelare.

Är is the present tense of the verb vara, which means to be.

So:

• jag är = I am
• du är = you are
• spelaren är = the player is

Unlike English, Swedish does not change this verb in the present tense depending on the subject. So är works for I, you, he, she, it, we, and they.

Because ung agrees with a singular common-gender noun here.

Spelaren is singular, and spelare is a common-gender noun (an en-word), so the adjective stays in its basic form:

• spelaren är ung = the player is young

Compare:

• ett barn är ungt = a child is young
• spelarna är unga = the players are young

So in this sentence, ung is correct because the subject is singular and common gender.

This is a very common question.

After the verb är, the adjective is being used predicatively. In Swedish, predicative adjectives usually agree with gender and number, but not in the same way as adjectives placed directly before a noun.

So:

• den unga spelaren = the young player
  
  • here the adjective comes before the noun, so it takes the -a form
• spelaren är ung = the player is young
  
  • here the adjective comes after är, so it stays ung

That is why you do not say spelaren är unga when talking about one player.

It is an en word.

You say:

• en spelare = a player

Because it is an en word, its definite singular form is:

• spelaren = the player

This also helps explain why the adjective is ung rather than ungt.

Yes, in this sentence it is very similar to English:

• Spelaren = subject
• är = verb
• ung = adjective/complement

So the structure is:

Subject + verb + adjective

This matches English The player is young.

You usually make it a yes/no question by putting the verb first:

• Är spelaren ung? = Is the player young?

So the word order changes from:

• Spelaren är ung.

to

• Är spelaren ung?

This verb-first pattern is very common in Swedish questions.

A simple learner-friendly guide:

• är sounds roughly like air, but shorter and flatter
• ung sounds roughly like oong with the ng sound at the end, though the vowel is not exactly like English

A few details:

• ä is a vowel sound that English does not match perfectly
• ng in ung is the same kind of sound as in English sing

So a rough approximation of the whole sentence is:

SPEH-lah-ren air oong

That is only approximate, but it is a useful starting point.

Not exactly.

• Spelaren är ung = The player is young
• En spelare är ung = A player is young

The first refers to a specific player.
The second refers to an unspecified player.

So the sentence you have uses the definite form and means a particular player is young.

Yes. It is completely natural, simple, and grammatically correct.

It is the kind of sentence often used in beginner material because it shows several useful basics clearly:

• a definite noun: spelaren
• the present tense of vara: är
• a common adjective: ung

So it is a very good model sentence for early Swedish learning.