The 26-year-old PNG international prop has joined on a two-year deal from Newcastle Thunder.
Eagles coach Mark Aston believes that Mexico will add some firepower to the Eagles forward pack.
“We are delighted to have signed Mark,” Aston told www.sheffieldeagles.com.
“He is a really powerful operator who has over his career developed into the front row. He is a really explosive player and he showed that in the 2013 World Cup with some exciting performances for Papua New Guinea.
“He will add some real power to the squad, he’s another who is still fairly young, he still has many years in front of him and we think he can really flourish in the full-time environment.
“I think that he has more to give and being in the full-time set-up will give him, and others, a real platform to bring the best out of themselves.
“I had a number of conversations with him and I can tell you that he is really looking forward to the challenge and we are really looking forward to working with him.
“We have our squad almost in place now; it is just a case of getting the names out there. I am really pleased with how our recruitment has gone, and I am looking forward to getting into the full-time day-to-day work with these guys.