Donald Trump just arrived at Yankee Stadium in the Bronx, and despite being in town to commemorate the anniversary of the September 11th attacks, POTUS still found an opportunity to deliver a rousing pump-up speech to the players!

47, just a day after the horrific assassination of his friend Charlie Kirk, was in the Boogie Down after visiting the Pentagon earlier in the day … exactly 24 years after the terror attack rocked America.

Before the Yanks took the field to battle the Tigers, Trump spoke from the clubhouse … where he predicted big things this season, and even took some credit for the Bronx Bombers’ dynasty in the late 90s and early 2000s.

“You’re gonna win. I’ll tell you what, George Steinbrenner was a great friend of mine, the whole family,” Trump said … “For some reason, I don’t know what it was, we won every time I came.”

The President then took a light-hearted jab at his late pal, Mr. Steinbrenner.

9/11 is always a somber day, but even more so this year after the shooting death of Kirk on Wednesday.

Before last night’s Yankees vs. Tigers tilt, the organization honored the late 31-year-old activist with a moment of silence.

It remains to be seen what kind of reception the president will receive. He was welcomed with a mix of cheers and boos just a few miles away in Queens at the U.S. Open last weekend.