The New York Yankees are set to receive another reinforcement next week, and it comes at a perfect time.

Outfielder Austin Slater, acquired at the trade deadline from the Chicago White Sox, begins his Triple-A rehab assignment Friday.

The 32-year-old veteran hasn’t yet had the chance to show Yankees fans what he was brought in to provide.

Now, with September looming, his skillset could finally give the team an edge in key matchups down the stretch.

A specialist at punishing left-handed pitching

Slater may not offer a complete offensive package, but he thrives in one very specific role: hitting left-handed pitchers.

This season, he has appeared in 54 games, hitting .223/.284/.440 overall, but those numbers don’t tell the full story.

Against lefties, he’s slashed .247 with five home r

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