Question: Rocky Johnson is most notable for his win by submission over an American mixed martial artist who competes for who?
Sentence (from "Demetrious Johnson (fighter)"): Known for his quick striking and elusive movement, Johnson has also landed the most takedowns in UFC Flyweight history and holds the record for the latest finish in UFC history with a submission win at 4:59 of the fifth round against Kyoji Horiguchi.
Relevant evidence: No