The New York Yankees have endured a frustrating trend since the deadline — trade acquisitions have been sidelined before truly making their impact.

Jake Bird was recently optioned to Triple-A to fine-tune his pitch mix, a setback for the bullpen’s midseason reinforcement plan.

Austin Slater followed with a hamstring injury, stripping the bench of a versatile right-handed bat capable of playing multiple positions.

Now, the Yankees have announced utility man Amed Rosario will hit the 10-day injured list with a left SC joint sprain.

Rosario’s value against left-handed pitching

The injury, retroactive to August 9, comes at a particularly bad time for New York’s offense against southpaws.

Rosario , a 29-year-old right-handed hitter, has been a potent weapon in platoon matchups against lef

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