The Reds have been linked with young, British talent after already landing Wales international Daniel James and England Under-21 international Aaron Wan-Bissaka during the summer window.
However, the boss has indicated that he is seeking players with certain attributes rather than merely focusing on their passports.
Ahead of the first pre-season match of Tour 2019 against Perth Glory, he told MUTV: “It doesn’t matter if they are English, Norwegian, French, Brazilian. You just want good players and good people. Quality and speed, of course, is a big thing in football nowadays.