Question: In what year was the man that Tony Lopez defeated by decision in the 1988 "The Ring" Fight of the year born?

full_context: Document 1: Muhammad Ali vs. Chuck Wepner: Muhammad Ali and Chuck Wepner fought each other in a boxing match on March 24, 1975. This was Ali's first boxing bout after The Rumble in the Jungle. The fight was billed as "Give the White Guy a Break". Ali won the fight after he knocked out Wepner in the fifteenth round.The fight is notable for being among the four fights in which Ali was officially knocked down in the ring, and for inspiring the 1976 film "Rocky".
Document 2: Justin Juuko: Justin "The Destroyer" Juuko (born 26 December 1972 in Masaka) is a Ugandan amateur light flyweight and professional feather/super feather/light/light welter/welterweight boxer of the 1990s, 2000s and 2010s who as an amateur won the gold medal at light flyweight in the Boxing at the 1990 Commonwealth Games in Auckland, New Zealand, and as a professional won the World Boxing Council (WBC) International super featherweight title, World Boxing Council (WBC) FECARBOX super featherweight title, African Boxing Union (ABU) light welterweight title, North American Boxing Federation (NABF) super featherweight title, and Commonwealth super featherweight title, and was a challenger for the interim World Boxing Association (WBA) World super featherweight title against Antonio Hernandez, World Boxing Council (WBC) super featherweight title against Floyd Mayweather, Jr., International Boxing Association (IBA) super featherweight title against Diego Corrales, World Boxing Union (WBU) super featherweight title against Michael Gomez, International Boxing Association (IBA) lightweight title against Rustam Nugaev, Global Boxing Union (GBU) light welterweight title against Gábor Vető, his professional fighting weight varied from 125 lb , i.e. featherweight to 143 lb , i.e. welterweight.
Document 3: Cassius Clay vs. Donnie Fleeman: Cassius Clay (soon Muhammad Ali) fought an eight-round boxing match with Texan Donnie Fleeman in Miami on February 21, 1961. Prior to this fight, Fleeman had a record of 51 fights with 45 wins including 20 knockouts. Clay won the bout through a technical knockout after the referee stopped the fight in the seventh round. This was the first time Clay had gone over six rounds in a boxing match. It was also the first time Fleeman had ever been knocked down in a boxing match. Fleeman retired from boxing after this fight.
Document 4: Ernie Lopez: Ernie "Indian Red" Lopez (September 24, 1945 – October 3, 2009), was an American professional boxer. He twice fought for the world welterweight boxing title, losing title bouts to José Nápoles in 1970 and 1973. He was a missing person from 1992 to 2004 and was the subject of extensive press coverage in early 2004 when, after being selected for induction into the California Boxing Hall of Fame, he was found at a homeless shelter in Fort Worth, Texas.
Document 5: Floyd Mayweather Jr. vs. Juan Manuel Márquez: Floyd Mayweather vs. Juan Manuel Márquez, billed as Number One/Número Uno, was a welterweight superfight which took place on September 19, 2009, at the MGM Grand Arena in Las Vegas between five-division world champion Floyd Mayweather Jr. (39–0, 25 KO) and three-division champion Juan Manuel Márquez (50–4–1, 37 KO). The fight served as a return to the ring for Mayweather, who, after his knock out victory of Ricky Hatton in December 2007, announced he would take a two-year layoff from boxing which later turned into retirement.
Document 6: Floyd Mayweather Jr. vs. Ricky Hatton: Floyd Mayweather Jr. vs. Ricky Hatton, billed as Undefeated, was a boxing superfight that took place on December 8, 2007, at the MGM Grand Garden Arena in Las Vegas, between reigning WBC & "The Ring" welterweight champion Floyd Mayweather Jr. and reigning "The Ring" light welterweight champion Ricky Hatton.
Document 7: Sylvester Lopez: Sylvester Lopez, born as Silvester Lopez on October 26, 1987, is a Filipino professional boxer who is the current WBC Silver Super Flyweight Champion and is also the former WBC International Super Flyweight Champion.
Document 8: Tony Lopez (boxer): Tony "The Tiger" Lopez (born February 24, 1963), is a former professional boxer from Sacramento. He was a 3-Time World Boxing Champion. He is remembered for his victory in the 1988 "The Ring" Fight of the year by decision over Rocky Lockridge. He fought against Julio César Chávez in 1994 in Monterrey. He lost by TKO. Tony Lopez is now retired from boxing and runs a bail bond agency in Sacramento.
Document 9: Marco Antonio López: Marco Antonio López Balderas (born May 6, 1987 in San Luis Potosí, San Luis Potosí, Mexico) is a Mexican professional boxer. He fights in the Super Featherweight division, and is the current WBC Youth Intercontinental Super Featherweight Champion.
Document 10: Floyd Robertson (boxer): Floyd "Klutei" Robertson (7 January 1937 – ?) born in Accra was a Ghanaian professional feather/super feather/lightweight boxer of the 1950s and '60s who won the Ghanaian featherweight title, West African Featherweight Title, and Commonwealth super featherweight title, and was a challenger for the World Boxing Council (WBC) featherweight title, and World Boxing Association (WBA) World featherweight title against Sugar Ramos, and Vicente Saldivar, his professional fighting weight varied from 124+1/4 lb , i.e. featherweight to 135 lb , i.e. lightweight.
Document 11: Freddie Roach (boxing): Frederick Steven "Freddie" Roach (born March 5, 1960) is an American boxing trainer and former professional boxer. Roach is widely regarded as one of the best boxing trainers of all time. He is the enduring boxing coach of the eight-division world champion Manny Pacquiao, five-time and four-division World Champion Miguel Cotto, former WBC Middleweight Champion Julio César Chávez, Jr., defensive master and three-time world champion James Toney, former UFC Welterweight Champion Georges St-Pierre, as well as top prospects Jose Benavidez, Peter Quillin, and Vanes Martirosyan. Roach was the trainer of former two-time world champion and notable women's champion Lucia Rijker. He has also trained former junior welterweight champion Amir Khan.
Document 12: Julio César Chávez: Julio César Chávez González (] ; born July 12, 1962), also known as Julio César Chávez Sr., is a Mexican former professional boxer who competed from 1980 to 2005. He is considered by acclamation as the greatest Mexican boxer of all time, and one of the greatest boxers of all time.
Document 13: Rocky Lockridge: Rick "Rocky" Lockridge (born January 30, 1959) is an American former professional boxer. He is known for handing Roger Mayweather his first defeat—a first-round knockout in just 98 seconds—earning him the WBA and lineal super featherweight titles. He later won the IBF super featherweight title.
Document 14: José Luis López (boxer): Jose Luis Lopez (born 1973-05-28 in Durango, Mexico) is a former Mexican professional boxer. He was known for his incredible ability to absorb a punch and tremendous power to knock out most of his opponents but didn't make very far due to drug abuse.
Document 15: Tommy Morrison: Tommy David Morrison (January 2, 1969 – September 1, 2013) was an American professional boxer who competed from 1988 to 1996, and held the WBO heavyweight title in 1993. He retired from boxing in 1996 when he tested positive for HIV, but returned for two more fights in 2007 and 2008. Morrison is also known for starring alongside Sylvester Stallone in the 1990 film "Rocky V".
ground_truth: 1959