לגבי משחק האליפות, ההרכב מוכן.

A common pronunciation is:

legabéy miskhák ha-alifút, haherkév mukhán

A few notes:

• לגבי = le-ga-BEY
• משחק = mis-KHAK
  The ח is the throaty kh sound.
• האליפות = ha-a-li-FUT
• ההרכב = ha-her-KEV
• מוכן = mu-KHAN

The stress is usually on the last syllable in לגבי, האליפות, ההרכב, and מוכן.

לגבי means regarding, concerning, or as for.

So לגבי משחק האליפות introduces the topic:
regarding the championship game / as for the championship game.

It is not exactly the same as for in the sense of ready for. That distinction matters here.

Because לגבי and ל־ mean different things.

• לגבי משחק האליפות = regarding the championship game
• מוכן למשחק האליפות = ready for the championship game

So this sentence is structured more like:

As for the championship game, the lineup is ready.

If you wanted the more direct idea The lineup is ready for the championship game, Hebrew would more naturally be:

ההרכב מוכן למשחק האליפות.

This is a construct chain in Hebrew, called סמיכות.

משחק האליפות literally works like:

• game of the championship

But in natural English, that becomes the championship game.

In Hebrew construct chains:

• the first noun usually does not take ה־
• definiteness is often shown on the second noun

So:

• משחק אליפות = a championship game
• משחק האליפות = the championship game

Even though the whole phrase is definite, the first word משחק stays without ה־.

Because in a construct chain, the definiteness of the whole phrase is usually determined by the second noun.

So:

• אליפות = championship
• האליפות = the championship

And that makes:

• משחק האליפות = the championship game

This is one of the things that feels unusual to English speakers, because English would usually mark definiteness at the beginning of the phrase, while Hebrew often does it inside the construct phrase.

הרכב can mean several related things depending on context:

• lineup
• formation
• composition
• makeup

In a sports context, ההרכב usually means the lineup or starting lineup.

So here it most likely refers to the players chosen for the game.

Because in Hebrew, the verb to be is usually omitted in the present tense.

So:

• ההרכב מוכן literally looks like the lineup ready
• but it means the lineup is ready

This is completely normal Hebrew.

Compare:

• הוא עייף = he is tired
• הקבוצה מוכנה = the team is ready

In past or future tense, Hebrew does use a form of to be:

• ההרכב היה מוכן = the lineup was ready
• ההרכב יהיה מוכן = the lineup will be ready

Because מוכן agrees with ההרכב.

הרכב is a masculine singular noun, so the adjective must also be masculine singular:

• הרכב מוכן = masculine singular

Compare:

• קבוצה מוכנה = feminine singular
• שחקנים מוכנים = masculine plural
• שחקניות מוכנות = feminine plural

So the form of the adjective is determined by the noun it describes.

Hebrew often puts a topic first, especially with words like לגבי.

So the structure is:

• לגבי משחק האליפות = topic
• ההרכב מוכן = comment about that topic

This gives a sense like:

As for the championship game, the lineup is ready.

This kind of topic-first structure is very natural in Hebrew.

The comma is natural and helpful, because לגבי משחק האליפות is a fronted topic phrase.

It marks a pause:

לגבי משחק האליפות, ההרכב מוכן.

In very informal writing, people may omit it, but with this structure the comma is standard and makes the sentence easier to read.

Yes. Depending on context, מוכן can mean:

• ready
• prepared
• set
• finalized

With ההרכב, it often suggests that the lineup has been decided and is now set.

So in sports language, it can carry the sense of:

The lineup is ready / set / finalized.