Roop (9-1) got on the fast-track to bigger and better things by knocking out top featherweight prospect Josh Grispi at The Ultimate Fighter (TUF) 13 Finale in June 2011; however, he was unable to capitalize on that big win and has since dropped consecutive fights to Hatsu Hioki and Cub Swanson.
Like Roop, Carvalho (13-5) is also hoping to rebound from a recent defeat.
His Octagon debut didn't exactly go as planned, dropping a unanimous decision to Felip Arantes at UFC 142 earlier this year. The loss snapped a three-fight winning streak for "Pato."
Perhaps a trip to his native Canada will change his luck.
UFC 149 is expected to feature a main event that includes featherweight Champion Jose Aldo against a soon-to-be-announced opponent. Match-ups of Court McGee vs. Nick Ring and Bryan Caraway vs. Mitch Gagnon have also been confirmed.
For more on the promotion's Calgary debut check out our complete UFC 149 event archive right here.