الجمهور يشجع الفريق.

A careful MSA reading is:

al-jumhūru yushajjiʿu al-farīqa

If you pause at the end, you will often hear:

al-jumhūr yushajjiʿu al-farīq

A few pronunciation notes:

• الجمهور = al-jumhūr
• يشجع = yushajjiʿu
• الفريق = al-farīq

Important sounds:

• ج is usually pronounced j in standard learning materials.
• ش is sh.
• ع is the Arabic letter ʿayn, a throat sound with no exact English equivalent.
• The doubled consonant in يشجّع should be held slightly longer because of the shadda on ج.

الـ is the Arabic definite article, usually equivalent to the.

So:

• الجمهور = the audience / the crowd
• الفريق = the team

Arabic uses الـ much more regularly than English uses the, so it is normal to see it on both the subject and the object.

Because الجمهور is grammatically a singular collective noun in Arabic.

Even though it refers to many people, it is treated as a singular noun, so the verb is singular:

• الجمهور يشجع الفريق = the audience supports/cheers the team

This is similar to English words like the crowd or the audience, which can also take singular agreement depending on the variety of English.

So يشجع is correct here, not يشجعون.

يشجع is in the imperfect form, which commonly covers:

• present: supports / is supporting
• habitual: supports regularly
• sometimes future, depending on context

In this sentence, the most natural reading is present or habitual:

• The audience supports the team
• The audience is cheering the team

Arabic does not always separate simple present and present progressive the way English does.

يشجع here is third person masculine singular.

Why?

• The subject is الجمهور, which is grammatically singular.
• It is treated as masculine in this sentence.

So the verb pattern is:

• هو يشجع = he supports / cheers
• with the noun: الجمهور يشجع

Because this sentence is a verbal sentence, not a nominal sentence with a present-tense to be.

Arabic normally does not use a separate present-tense word for is/are the way English does.

Here, the action is already contained in the verb يشجع:

• يشجع = supports / is cheering

So nothing extra is needed.

In الجمهور يشجع الفريق:

• الجمهور = the subject
• يشجع = the verb
• الفريق = the direct object

So the structure is:

Subject + Verb + Object

Arabic also allows Verb + Subject + Object, so you could also see:

يشجع الجمهورُ الفريقَ

Both mean the same basic thing: The audience cheers the team.

In your sentence, starting with الجمهور gives a slight feeling of emphasis on the audience.

Because definiteness and grammatical role are separate ideas.

• الـ shows that the noun is definite: the team
• Being the object just means it receives the action

So الفريق means the team, whether it is a subject or an object.

Compare:

• فريق = a team
• الفريق = the team

يشجع comes from the root ش ج ع.

In this sentence, the verb is from Form II:

• past: شجّع
• present/imperfect: يشجّع

The doubled middle consonant, shown by shadda in شجّع, often gives Form II verbs a causative or intensive sense.

So compared with the idea of basic courage from the root, شجّع means things like:

• to encourage
• to support
• to cheer

In sports contexts, يشجع الفريق very naturally means cheers/supports the team.

Yes. In fully vowelled formal Arabic, the sentence would be:

الجمهورُ يُشَجِّعُ الفريقَ

The case endings are:

• الجمهورُ with -u because it is the subject
• يُشَجِّعُ with -u as the normal indicative verb ending
• الفريقَ with -a because it is the direct object

In everyday printed Arabic, these short vowels are usually omitted, so learners must infer them from grammar.

Yes. That would be a very normal Arabic word order too.

Two common versions are:

• الجمهور يشجع الفريق
• يشجع الجمهور الفريق

Both mean The audience cheers the team.

The difference is mostly one of style and focus:

• الجمهور يشجع الفريق puts more attention on the audience
• يشجع الجمهور الفريق starts more neutrally with the action

Both are correct MSA.