If you want a Kristaps Porzingis Knicks shirt or jersey as a memento, now would be the perfect time to go shopping.

The day after the 7-foot-3 Latvian and one-time face of the Knicks was stunningly dealt to the Mavericks, prices on his Knicks merchandise dropped quickly.

At the Modell’s Sporting Goods location near Madison Square Garden in Manhattan, a Porzingis shirt could be purchased for $10 and a jersey for $20. A store rep told The Post prior to the trade the jerseys were selling for $120.