Learn Hardcore Romanian: Echipa joacă împotriva adversarului. - The team is playing against the opponent.

Echipa means the team. Romanian often puts the definite article at the end of the noun instead of using a separate word like English the.

echipă = team
echipa = the team

So in this sentence, the subject is a specific team: the team.

Why is the verb joacă and not something else?

Joacă is the 3rd person singular present tense of a juca (to play).

Here it matches echipa because echipa is singular:

eu joc = I play
tu joci = you play
el/ea joacă = he/she plays
echipa joacă = the team plays

Even though a team is made up of many people, grammatically echipa is singular, so the verb is singular too.

Why doesn’t Romanian use a subject pronoun here, like ea joacă?

Romanian often leaves out subject pronouns when they are not needed, because the verb form already shows the person and number.

So:

Joacă already tells you it is he/she/it plays
Echipa joacă is completely natural
Ea joacă would only be added for emphasis or contrast

This is different from English, where a subject pronoun is usually required if there is no noun subject.