PHILADELPHIA — As the NFL draft, it’s hard to predict the impact of MLB’s trade deadline deals.

Sometimes the results emerge quickly, as when Andrew Benintendi, a seemingly perfect fit for a Yankees offense in need of a left-handed contact hitter, went down for the season with a fractured hook of the hamate bone in his right wrist, just weeks after being acquired.

Other times, the effects take longer to emerge.

Back in July 2018, the Yankees were in the market for an elite reliever to add to what was already an excellent bullpen.