Question: Nobuhiro Ishida is best known for knocking out an American professional boxer who held the regional WBO-NABO junior middleweight title in what  year?
Sentence (from "Nobuhiro Ishida"): He is a former WBA interim super welterweight champion who is best known for knocking out James Kirkland in a middleweight bout at the MGM Grand Las Vegas in April 2011.
Relevant evidence: Yes