Gerhardus Christian "Gerrie" Coetzee (born 8 April 1955) is a South African former professional boxer who competed from 1974 to 1986, and in 1993 and 1997.
 He was the first boxer from the African continent ever to fight for, and win, a world heavyweight championship, having held the WBA title from 1983 to 1984.
 One of Coetzee's nicknames, "The Bionic Hand", came about because of persistent troubles with his right hand, which required the insertion of several corrective items during three surgeries.
 His Afrikaans nickname was ""Seer Handjies"", or "Little Sore Hands", named so by fellow South African boxing great Kallie Knoetze.
Fernando Javier Vargas (born December 7, 1977) is an American former professional boxer who competed from 1997 to 2007.
 He is a two-time light middleweight world champion, having held the IBF title from 1998 to 2000, and the WBA title from 2001 to 2002.
 With his IBF title win, Vargas became the youngest boxer in history to win a light middleweight world title, at age 21.
 As an amateur he won a bronze medal in the light welterweight division at the 1995 Pan American Games, and reached the second round of the welterweight bracket at the 1996 Olympics.
Chartchai Chionoi (Thai: ชาติชาย เชี่ยวน้อย ; rtgs: "Chatchai Chiao-noi" ) Chartchai Laemfapha (Thai: ชาติชาย แหลมฟ้าผ่า ; rtgs: "Chatchai Laemfapha" ) or birth name Naris Chionoi (Thai: นริศ เชี่ยวน้อย ; rtgs: "Narit Chiao-noi" ; born October 10, 1942 near Hua Lamphong Station, Pathum Wan District, Bangkok) is a former professional Thai boxer, WBC World champion & WBA World champion in the flyweight division.
 Chionoi would take the WBC World Flyweight Title two successive times and the WBA Title one successive times before finally relinquishing it.
Edwin "Chapo" Rosario (] ; March 15, 1963 – December 1, 1997) was a world champion professional boxer who competed from 1979 to 1997.
 He won the lightweight championship of the world three times, as the WBC lightweight champion (1983–84), and the WBA champion (1986–87) and (1989–90).
 Rosario won a 4th world championship after moving up to the junior welterweight division by claiming the WBA title, holding that crown from 1991 to 1992.
Sean Mannion (born October 6, 1956 in Rosmuc, Ireland) is a former boxer in the light middleweight division.
 He boxed out of Massachusetts in the United States.
 His most notable bout was against Mike McCallum for the vacant WBA title, which he lost over a fifteen round unanimous decision.
 Newline Films reportedly plans to make a film about his life story.
 In January 2014, "Rocky Ros Muc: Seán Ó Mainnín", a biography about Mannion's life and career was released.
 The book is written in Irish but there are plans afoot to release an English version.
"A Warrior's Call" is a song by Danish heavy metal band Volbeat and the ninth track from their fourth studio album, "Beyond Hell/Above Heaven".
 It is dedicated to former professional boxer Mikkel Kessler who provides vocals on the track.
 It was released in 2011 as a single to active rock stations.
 The music video was directed by Matt Wignall.
 It was released in November 2011, and shows a rock concert and archive footage of Kessler.
Wilfredo Vázquez Olivera (born August 2, 1960) is a Puerto Rican former professional boxer who competed from 1981 to 2002.
 He is a three-weight world champion, having held the WBA bantamweight title from 1987 to 1988; the WBA super bantamweight title from 1992 to 1995; and the WBA and lineal featherweight titles from 1996 to 1998.
 His son, Wilfredo Vázquez Jr., is also a former boxer and world champion.
Mikkel Kessler (born 1 March 1979) is a Danish professional boxer.
 He is a multiple-time super-middleweight world champion, having held the WBA title three times between 2004 and 2013, and the WBC title twice between 2006 and 2010.
Evander Holyfield (born October 19, 1962) is an American former professional boxer who competed from 1984 to 2011.
 He reigned as the undisputed champion in both the cruiserweight and heavyweight divisions, being the first and to date only boxer in history to do so, which earned him the nickname of "The Real Deal".
 Holyfield is the only four-time world heavyweight champion, having held the WBA, WBC, IBF, and lineal titles from 1990 to 1992; the WBA, IBF, and lineal titles again from 1993 to 1994; the WBA title from 1996 to 1999; the IBF title from 1997 to 1999; and the WBA title for a fourth time from 2000 to 2001.
Juan Nazario (born September 27, 1963 in Guaynabo, Puerto Rico) is a former professional boxer.
 During his career, which lasted from 1982 to 1993, Nazario won the WBA world lightweight title.
 His first world title challenge came in 1987 when he fought fellow Puerto Rican Edwin Rosario for the WBA belt, Rosario won the fight by an eighth round knockout.
 Nazario and Rosario fought a rematch in 1990, once again for the WBA title.
 Nazario was able to reverse the result of the first fight by beating Rosario in the eighth round to become champion.
 In his first defense Nazario challenged Pernell Whitaker for the undisputed title.
 Whitaker won the fight in the first round and Nazario never fought for a world title again.
 Nazario fought for a final time on July 10, 1993, beating Angel Cordova by unanimous decision.

Question: The song "A Warrior's Call" by Volbeat is dedicated to a former boxer that held the WBA title how many times?
Answer: three