supootsu no shiai de wa, aite no ugoki o yoku mimasu.

In a sports match, I watch my opponent's movements carefully.

Breakdown of supootsu no shiai de wa, aite no ugoki o yoku mimasu.

• は: topic particle
• を: direct object particle
• 見みる: to watch
• の: possessive case particle

Questions & Answers about supootsu no shiai de wa, aite no ugoki o yoku mimasu.

Why is there both で and は in 試合では?

This is a very common question.

• で marks the place/situation where an action happens: in/during a match
• は marks that whole phrase as the topic or adds contrast/emphasis

So:

• 試合で = in a match / during a match
• 試合では = as for in a match / in a match, ...

Here, では makes during a sports match the setting the speaker wants to talk about. It can also sound slightly contrastive, like when it comes to matches.

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What does の do in スポーツの試合?

The particle の connects nouns. It often works like:

• of
• 's
• a noun used like an adjective

So スポーツの試合 means something like:

• a sports match
• literally, a match of sports

It tells you what kind of match it is.

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What does の do in 相手の動き?