Detroit Tigers star -- and World Series failure -- Delmon Young has pled "guilty" to aggravated harassment after shouting an anti-Semitic slur at a panhandler earlier this year ... and tackling another person to the ground.

Delmon was arrested for the incident in NYC in April -- when he was approached by a Jewish-looking panhandler (whatever that means) outside a hotel, and shouted, "F**king Jews! F**king Jews!"

Delmon was confronted by another person on the street after shouting the slur, and the baseball star tackled the man ... who then called 911. Cops showed up and arrested Delmon for aggravated harassment.

Delmon has now pled "guilty" as part of a plea deal -- in which he was sentenced to perform 10 days community service, and participate in a hate crime program at the Museum of Tolerance in NYC.

If he completes everything, Delmon will be allowed to withdraw his "guilty" plea to "aggravated harassment" -- and plead to just "harassment" instead, a lesser infraction.

The Detroit Tigers don't want a repeat of their devastating 2006 World Series loss, so they made a major change in how they do things -- and that change is eating more chicken.

TMZ spoke with a Tigers clubhouse rep who tells us a chef comes in and cooks for the players every day and the menu is pretty expansive -- we're talkin' hamburgers, jambalaya, Chinese food, eggs, fresh fruit, soup, Kobe sliders, mac and cheese ... the works.

But the biggest item on the menu is chicken and lots of it. The rep says chicken breast is always available for breakfast and there's always a baked chicken for lunch too, as a healthy option.

The rep says the major difference between the Tigers' menu during their failed 2006 Series run and this year ... "more chicken."

It better pay off soon ... the Tigers are 0-2 against the Giants.