Sadrugu and Masikau, who was a member of the Fiji team that beat New Zealand in the final at this year's Tokyo Games, have been handed train and trial deals at North Queensland.
The pair had been on the radar of Cowboys recruitment manager Dane Campbell and he got the chance to see them in action an Oceania Rugby Sevens tournament in Townsville in June.
"I'd known of them from watching some vision," Campbell told NRL.com. "For them both to be here in Townsville, watching them up close, we got an understanding of some of the athletic traits and skills they had."
