Why Paper Rex will win today:

Paper Rex has only ever lost to an Asian team internationally, and their current opponent is European.
Their losses Internationally:

1. Vision Strikers
2. SuperMassive Blaze (likely most of their players are from the asian side of Turkey)
3. Northeption
4. Damwon Gaming
5. DRX
6. Zeta Division

Will PRX lose to their first Non-Asian team today?

It's not whether players reside on the Asian side. It's who they compete with.

After addition of jingg, they had lost 4 matches (laze one was a troll so not counting that). 2 JP, 2 Kr teams.

it will, surely

paper rex will win today because their playstyle is too good and would require too much prep work to counter, FPX can’t do that in a single day

SuperMassive Blaze (likely most of their players are from the asian side of Turkey
source: trust me

Plus they still have the yoru comp to play with and they get all map bans