Kakinya baru sahaja terseliuh.

-nya here means his, her, or sometimes their depending on context.

So kakinya means his/her leg or his/her foot.

In Malay, possession is often shown by attaching -nya directly to the noun:

• kaki = leg / foot
• kakinya = his/her leg / foot

Malay does not mark gender in this form, so kakinya could refer to a man or a woman.

It can mean either, depending on context.

In everyday Malay, kaki is often used quite broadly for the lower limb area. In a sentence like Kakinya baru sahaja terseliuh, English might translate it as:

• His/Her foot just got sprained
• His/Her leg just got twisted
• often more naturally: He/She just sprained his/her ankle

The exact body part is not always as precise in Malay as it is in English, so context decides a lot.

baru sahaja means just, just now, or only just.

It shows that the event happened very recently.

For example:

• baru = just / newly
• sahaja = only / merely

Together, baru sahaja strongly emphasizes recency:

• Kakinya baru sahaja terseliuh = His/Her leg has only just been sprained / He/She just sprained it

Yes, often one is enough, but using both adds emphasis.

Compare:

• baru terseliuh = just got sprained
• baru sahaja terseliuh = only just got sprained / literally just only in effect

This combination is very common and natural in Malay. It makes the idea of very recent sound a bit clearer or stronger.

In this sentence, ter- shows something that happened unintentionally or accidentally, or a resulting state.

So:

• seliuh relates to a sprain/twist injury
• terseliuh = got sprained / became sprained / was accidentally twisted

This is a very common use of ter- with things that happen not on purpose.

So terseliuh does not mean that someone deliberately did the action. It suggests an accidental injury.

Not exactly in the same way English was sprained is passive.

Malay ter- forms often describe:

• accidental events
• unintentional actions
• resulting states

So terseliuh is better understood as something like:

• got sprained
• ended up sprained
• was accidentally twisted

It is not a straightforward passive construction like was sprained by someone.

Malay often leaves out the subject when it is already understood from context.

So instead of saying:

• Dia baru sahaja terseliuh kaki/kakinya

Malay can simply say:

• Kakinya baru sahaja terseliuh

This is natural because the body part plus -nya already tells you whose leg/foot is being talked about. The sentence focuses on the injured body part rather than explicitly naming the person.

Starting with kakinya puts the focus on the body part.

Malay word order is flexible enough that a speaker can begin with what they want to highlight. Here, the topic is his/her leg.

So the sentence feels a bit like:

• As for his/her leg, it has just been sprained or more naturally:
• His/Her leg just got sprained

This is a very normal way to express this kind of idea in Malay.

Yes, that is possible, but it is structured differently.

• Dia baru sahaja terseliuh kaki = He/She just sprained his/her leg/foot
• Kakinya baru sahaja terseliuh = His/Her leg just got sprained

The first version focuses more on the person. The second version focuses more on the injured body part.

Both can be natural, depending on context.

Yes. Saja is the shorter, more informal form of sahaja.

So these are both possible:

• baru sahaja
• baru saja

They mean the same thing.
Sahaja is a little more formal or full; saja is very common in everyday speech.

Sometimes, yes, but in practice -nya most often means his or her in beginner-level examples.

Depending on context, -nya can also refer to:

• a person already mentioned
• their
• even it/its for things or animals

So you should not think of -nya as strictly only his or her. It is a general third-person marker whose exact meaning comes from context.

It is natural and understandable.

A speaker might also say things like:

• Kaki dia baru terseliuh
• Dia baru sahaja terseliuh kaki
• Kakinya terseliuh tadi

But Kakinya baru sahaja terseliuh is perfectly normal Malay. It sounds like someone is reporting a recent injury, with emphasis on the leg/foot itself.