Si hay otra prórroga, la afición se irá poniendo aún más nerviosa.

In Spanish, after si meaning if for real/possible future situations, you normally use the present tense, not the future.

So Spanish says:

Si hay otra prórroga... = If there is another period of extra time...

Even though it refers to the future, hay is correct here. Using si habrá would sound wrong in standard Spanish for this kind of condition.

A very common pattern is:

• Si + present, future
• Si llueve, nos quedaremos en casa.
• Si hay otra prórroga, la afición se irá poniendo...

In sports, prórroga usually means extra time or overtime, depending on the sport and the variety of English you use.

So otra prórroga suggests that the match may be extended again, or that there will be an additional extra period.

More generally, prórroga can also mean an extension of time in other contexts, such as deadlines or official periods.

La afición is a very common Spanish collective noun meaning the fans, the supporters, or the fanbase.

Even though it refers to many people, it is grammatically singular, which is why the verb is singular too:

• la afición se irá poniendo...

If you used los aficionados, that would focus more directly on the individual fans.
La afición sounds more collective and is especially common in sports Spanish.

Because la afición is grammatically a singular noun.

Spanish agreement follows the grammatical form of the noun, not necessarily the number of people it refers to. So:

• La afición está contenta.
• La afición se irá poniendo nerviosa.

This is similar to how English sometimes uses singular collective nouns, though Spanish is usually more consistent about it here.

This is a combination of:

• irse a? No, not here.
• ir + gerund: a structure that shows gradual change
• plus the reflexive/pronominal form ponerse

So:

• ponerse nervioso = to become nervous
• irse poniendo nervioso = to get more and more nervous / to gradually become nervous
• se irá poniendo nerviosa = will gradually become nervous

The idea is not a sudden change, but a process.

Both are possible, but they are not exactly the same.

• Se pondrá nerviosa = it will become nervous
• Se irá poniendo nerviosa = it will gradually get nervous / it will become increasingly nervous over time

The version with ir + gerund adds a sense of progression. It suggests that as the situation continues, the nerves will build.

So this sentence is more expressive than a simple future.

Because nerviosa agrees with la afición, which is grammatically feminine singular.

• la afición → feminine singular
• therefore: nerviosa

Even though it refers to many fans, the adjective must match the noun actually used.

Compare:

• La afición está nerviosa.
• Los aficionados están nerviosos.

Aún más means even more.

So:

• más nerviosa = more nervous
• aún más nerviosa = even more nervous

It strengthens the comparison.

In this sentence, it suggests the fans are already nervous, and another period of extra time would make them even more so.

They are often closely related, but traditionally:

• aún with an accent usually means still or even
• aun without an accent often appears in expressions like aun así or incluso

In aún más, the accented form is standard and very common.

In modern usage, you may sometimes see variation, but for a learner, it is safest to remember:

• aún más = even more
• aún no = still not

Otra means another or one more.

It agrees with prórroga, which is feminine singular:

• otro partido
• otra prórroga

So si hay otra prórroga means if there is another extra period / another overtime period.

Because Spanish often uses otro/otra without an article when it means another in a general sense.

So:

• Hay otra prórroga = There is another extra-time period
• not usually Hay la otra prórroga

Using la otra prórroga would mean the other extra-time period, which is a different idea.

The se belongs to the verb ponerse.

In Spanish:

• poner = to put
• ponerse = to become in many expressions of change of state

Examples:

• ponerse triste = to become sad
• ponerse nervioso = to become nervous
• ponerse rojo = to turn red

So here se is not optional. It is part of the verb meaning.

Spanish has more than one way to talk about the future.

• se irá poniendo = simple future of ir
  • gerund
• se va a ir poniendo = going to
  • ir + gerund

Both are possible, but se irá poniendo is a bit more compact and often sounds slightly more written or formal.
Se va a ir poniendo can sound a bit more conversational.

Both mean that the nervousness will gradually increase.

Not naturally. A word-for-word translation sounds strange in English because the Spanish structure does not map neatly onto normal English phrasing.

A better natural translation would be something like:

• If there’s another period of extra time, the fans will get even more nervous.
• If there’s more extra time, the crowd will become even more nervous.
• If there’s another overtime period, the supporters will grow even more anxious.

So it is better to understand the structure as a Spanish way of expressing gradual change, not to translate each word mechanically.

Yes. It combines two very common patterns:

1. Si + present, future

   • Si viene, hablaremos.
   • Si ganan, celebraremos.

2. Ir + gerund for gradual development

   • La situación va mejorando.
   • Me fui cansando.
   • Se irá poniendo nerviosa.

So although the full sentence may look advanced, it is built from very standard Spanish patterns.