why is there a puerto rico vs philippines rivalry being made?

Pinoy boxers have an advantage IMO , I was told that african-americans and asians have more muscle tissue , its a genetic thing , and for the most part are more athletic than the average latino. But mexican and Puerto rican boxing schools are some of the best. IMO P.R has more close to pure boxers , mexicans might have the best chins , Pinoys are coming up on the scene hard , and they will have good fighters.

Fighters PR>Phil Phil boxers needs to improve