השחקנית שלנו הבקיעה שני שערים, ולכן היא הייתה בטוחה שהקבוצה תנצח.

The prefix ה־ is the Hebrew definite article, meaning the.

So:

• שחקנית = actress / female player
• השחקנית = the actress / the female player

In sports contexts, שחקנית usually means female player, not stage actress, even though the same word can also mean actress in other contexts.

Because the sentence is talking about a female person.

• שחקן = male player / actor
• שחקנית = female player / actress

Hebrew marks grammatical gender much more often than English does. Since the subject is female, later words in the sentence also match that gender, such as:

• הבקיעה = she scored
• הייתה בטוחה = she was sure

In Hebrew, possessive words like שלי, שלך, שלנו usually come after the noun.

So:

• השחקנית שלנו = our player
• literally: the player of-us

This is the normal Hebrew pattern. English puts possession before the noun (our player), but Hebrew often puts it after.

הבקיעה is the past tense, 3rd person feminine singular form of the verb להבקיע, which means to score (especially a goal in sports).

So:

• הוא הבקיע = he scored
• היא הבקיעה = she scored

The ending helps show that the subject is feminine.

Because שערים is a masculine noun.

In Hebrew, the number 2 changes depending on the gender of the noun:

• שני
  • masculine noun
• שתי / שתיים
  • feminine noun

Since:

• שער = goal / gate
• שערים = goals
  and שער is masculine,

you say:

• שני שערים = two goals

Compare:

• שתי דקות = two minutes because דקה is feminine

Yes. שער can mean gate, שער שערים, or in sports, goal.

Here the context is clearly sports, so שני שערים means two goals.

Hebrew often uses the same word in different contexts, and you understand the correct meaning from the sentence.

ולכן means and therefore, so, or therefore.

It is made of:

• ו־ = and
• לכן = therefore / so

So ולכן links the two parts of the sentence:

• she scored two goals,
• therefore / so she was sure...

It is a slightly more formal or written-sounding connector than just אז (so / then) in some contexts.

Because the sentence is in the past.

• היא בטוחה = she is sure
• היא הייתה בטוחה = she was sure

Hebrew often uses the verb היה / הייתה to express was / were in past-tense descriptions.

Also, בטוחה is feminine singular, matching she.

Compare:

• הוא היה בטוח = he was sure
• היא הייתה בטוחה = she was sure

Because the adjective must match the gender of the person it describes.

• בטוח = sure/confident, masculine singular
• בטוחה = sure/confident, feminine singular

Since the subject is היא (she), Hebrew uses the feminine form:

• היא הייתה בטוחה

Because after she was sure, the thing she was sure about was still in the future at that time.

So:

• הייתה בטוחה = was sure
• שהקבוצה תנצח = that the team would win / that the team was going to win

Hebrew often uses the future tense after verbs like thought, knew, was sure, when referring to something that had not happened yet from the viewpoint of the past.

So literally it is closer to:

• she was sure that the team will win

but in natural English we usually say:

• she was sure that the team would win

The prefix ש־ means that.

So:

• שהקבוצה תנצח = that the team will win

It connects the main clause to the subordinate clause.

Without breaking it apart too much:

• ש = that
• הקבוצה = the team

So שהקבוצה is literally that-the-team.

This kind of attached prefix is very common in Hebrew.

Because it means the team, not just a team.

• קבוצה = a team
• הקבוצה = the team

In this context, it refers to a specific team already understood from the situation: presumably her team.

תנצח is the future tense form of לנצח (to win).

Here it means:

• the team will win

Because קבוצה is grammatically feminine singular, the verb matches it.

So:

• הקבוצה תנצח = the team will win

Even though a team contains many people, the noun קבוצה itself is singular, so the verb is singular too.

Yes. It is very natural.

The sentence is structured like this:

• השחקנית שלנו = subject
• הבקיעה שני שערים = verb + object
• ולכן = connector
• היא הייתה בטוחה = new clause
• שהקבוצה תנצח = subordinate clause

Hebrew often uses word orders that are similar to English in clear narrative sentences like this one. So the overall flow is very natural and not especially unusual.

Yes. In sports Hebrew, להבקיע is specifically used for scoring a goal, so depending on style you could translate it as:

• scored
• scored a goal
• netted
• put away / put in two goals

But the core meaning is simply to score a goal.

You would change the words that show feminine gender to masculine:

• השחקן שלנו הבקיע שני שערים, ולכן הוא היה בטוח שהקבוצה תנצח.

Changes:

• השחקנית → השחקן
• הבקיעה → הבקיע
• היא → הוא
• הייתה בטוחה → היה בטוח

The rest stays the same because שני שערים and הקבוצה תנצח do not depend on the player's gender.