Sizing Concern - Nike Phantom 6 Low

Link - https://www.adidas.com.ph/predator-accuracy.3-low-turf-boots/GZ0002.html

Link https://www.nike.com/ph/t/phantom-6-low-academy-football-shoes-40HUyNV5

Hey Guys i have a US 9 in Predator Accuracy 3 Low Turf , and i see a good deal on Nike Phantom 6 - only on size 9 - should i get it, or i should size up ?