Darren Hamilton is a British boxer.
 He won the British Light-Welterweight title in 2012, beating Ashley Theophane in Liverpool to claim the crown.
 He also won the Southern Area Light-Welterweight title by beating Peter McDonagh in Bethnal Green, London, in 2011.
Nigel Gregory Benn (born 22 January 1964) is a British former professional boxer who competed from 1987 to 1996.
 He is a two-weight world champion, having held the WBO middleweight title in 1990, and the WBC super-middleweight title from 1992 to 1996.
 Additionally he held the Commonwealth middleweight title from 1988 to 1989.
 Nicknamed "The Dark Destroyer" for his formidable punching power and aggressive fighting style, Benn is ranked by BoxRec as the fourth best British super-middleweight boxer of all time.
Shinsuke Yamanaka (山中 慎介 , Yamanaka Shinsuke , born October 11, 1982) is a Japanese professional boxer, and former WBC and "The Ring" bantamweight world champion, having held the WBC title between 2011 and 2017.
 He made twelve successful defences of the WBC title and his reign is the fourth longest in boxing's bantamweight division.
 As of May 2017, he is ranked as the world's best bantamweight by "The Ring" magazine, BoxRec and the Transnational Boxing Rankings Board.
 He is also ranked as the world's seventh best boxer, pound for pound, by BoxRec, ninth by "The Ring" magazine, and ninth by the Transnational Boxing Rankings Board.
Christopher Livingstone Eubanks (born 8 August 1966), known as Chris Eubank, is a British former professional boxer who competed from 1985 to 1998.
 He held the WBO middleweight and super-middleweight titles, scoring victories over six world champions, and is ranked by BoxRec as the third best British super-middleweight boxer of all time.
Gennady Gennadyevich Golovkin (; born 8 April 1982), often known by his nickname "GGG" or "Triple G", is a Kazakhstani professional boxer who currently holds the unified WBA (Super), WBC, IBF, and IBO middleweight titles.
 As of September 2017, he is ranked as the world's best middleweight by BoxRec and the Transnational Boxing Rankings Board (TBRB), and second by "The Ring" magazine.
 He is also ranked as the world's best active boxer, pound for pound, by "The Ring"; second by the TBRB; and third by BoxRec
Richard John Hatton, {'1': ", '2': ", '3': ", '4': "} (born 6 October 1978) is a British former professional boxer who competed from 1997 to 2012, and has since worked as a boxing promoter and trainer.
 During his boxing career he held multiple world championships at light-welterweight and one at welterweight.
 Hatton is ranked by BoxRec as the best British light-welterweight of all time, the third best in Europe, and eleventh best worldwide.
 In 2005 he was named Fighter of the Year by "The Ring" magazine and the Boxing Writers Association of America.
Curtis Woodhouse (born 17 April 1980) is an English former professional footballer turned professional boxer and football manager.
 He is currently manager of Bridlington Town.
 Woodhouse played football as a central midfielder, and competed as a light-welterweight boxer.
 He is the former British light-welterweight champion.
 His career in the Football League spanned across nine seasons, earning four caps for the England under-21 football team.
 Woodhouse's professional boxing record stands at 29 fights 22 wins, 13 of which are by knock-out, and 7 defeats.
Michael Stewart (born December 20, 1977, Columbia, Tennessee) is a professional boxer.
 He has held the USBA light welterweight title.
 In perhaps his most high-profile bout, he was knocked out by Ricky Hatton in round 5.
 He also lost an IBF title fight by decision to Sharmba Mitchell.
Wisaksil Wangek (Thai: วิศักดิ์ศิลป์ วังเอก ; born December 8, 1986), better known as Srisaket Sor Rungvisai (ศรีสะเกษ ศ.รุ่งวิสัย), is a Thai professional boxer.
 He is a two-time WBC super flyweight champion, having held the title since March 2017, and previously from 2013 to 2014.
 As of September 2017, Sor Rungvisai is ranked as the world's best active boxer in the division by the Transnational Boxing Rankings Board (TBRB) and BoxRec, and second by "The Ring" magazine.
 BoxRec also ranks him as the world's fifth best active boxer, pound for pound, and tenth by the TBRB.
Naseem Hamed (Arabic: نسيم حميد‎ ‎ ; born 12 February 1974), commonly known as "Prince" Naseem or "Naz", is a British former professional boxer who competed from 1992 to 2002.
 He held multiple world championships at featherweight, including the WBO title from 1995 to 2000; the IBF title in 1997; and the WBC title from 1999 to 2000.
 He also reigned as lineal champion from 1998 to 2001; IBO champion from 2002 to 2003; and held the European bantamweight title from 1994 to 1995.
 Hamed is ranked as the third best British featherweight boxer of all time by BoxRec.
 In 2015 he was inducted into the International Boxing Hall of Fame.

Question: Which boxer, who is ranked by BoxRec as the best British light-welterweight of all time, knocked out boxer Michael Stewart?
Answer: Ricky Hatton