source: The world's first MMA league was the International Fight League, and American mixed martial arts
target: The International Fight League was an American mixed martial arts (MMA) promotion billed as the world's first MMA league.
references: The International Fight League was an American mixed martial arts (MMA) promotion billed as the world's first MMA league. The International Fight League was an American mixed martial arts (MMA) event adveritzed as the world's first MMA club. The International Fight League was an American mixed martial arts (MMA) promotion billed as the world's first MMA league. The International Fight League was an American mixed martial arts (MMA) promotion billed as the world's first MMA league. The International Fight League was an American mixed martial arts promotion that was the first MMA league. The International Fight league was billed as the world's first mixed martial arts (MMA) league. The International Fight League was an American mixed martial arts (MMA) advance billed as the world's first MMA league.