Background: Muhammad Ali (; born Cassius Marcellus Clay Jr.; January 17, 1942 - June 3, 2016) was an American professional boxer and activist. He is widely regarded as one of the most significant and celebrated sports figures of the 20th century. From early in his career, Ali was known as an inspiring, controversial, and polarizing figure both inside and outside the ring. Cassius Clay was born and raised in Louisville, Kentucky, and began training as an amateur boxer when he was 12 years old.
Context: Cassius Marcellus Clay Jr. () was born on January 17, 1942, in Louisville, Kentucky. He had a sister and four brothers. He was named for his father, Cassius Marcellus Clay Sr. (1912-1990), who himself was named in honor of the 19th-century Republican politician and staunch abolitionist, Cassius Marcellus Clay, also from the state of Kentucky. Clay's father's paternal grandparents were John Clay and Sallie Anne Clay; Clay's sister Eva claimed that Sallie was a native of Madagascar. He was a descendant of slaves of the antebellum South, and was predominantly of African descent, with smaller amounts of Irish and English heritage. His father painted billboards and signs, and his mother, Odessa O'Grady Clay (1917-1994), was a domestic helper. Although Cassius Sr. was a Methodist, he allowed Odessa to bring up both Cassius Jr. and his younger brother Rudolph "Rudy" Clay (later renamed Rahman Ali) as Baptists. Cassius Jr. attended Central High School in Louisville.  Clay grew up amid racial segregation. His mother recalled one occasion when he was denied a drink of water at a store--"They wouldn't give him one because of his color. That really affected him." He was also affected by the 1955 murder of Emmett Till, which led to young Clay and a friend's taking out their frustration by vandalizing a local railyard.  Clay was first directed toward boxing by Louisville police officer and boxing coach Joe E. Martin, who encountered the 12-year-old fuming over a thief's having taken his bicycle. He told the officer he was going to "whup" the thief. The officer told Clay he had better learn how to box first. Initially, Clay did not take up Martin's offer, but after seeing amateur boxers on a local television boxing program called Tomorrow's Champions, Clay was interested in the prospect of fighting. He then began to work with trainer Fred Stoner, whom he credits with giving him the "real training", eventually moulding "my style, my stamina and my system". For the last four years of Clay's amateur career he was trained by boxing cutman Chuck Bodak.  Clay made his amateur boxing debut in 1954 against local amateur boxer Ronnie O'Keefe. He won by split decision. He went on to win six Kentucky Golden Gloves titles, two national Golden Gloves titles, an Amateur Athletic Union national title, and the Light Heavyweight gold medal in the 1960 Summer Olympics in Rome. Clay's amateur record was 100 wins with five losses. Ali said in his 1975 autobiography that shortly after his return from the Rome Olympics, he threw his gold medal into the Ohio River after he and a friend were refused service at a "whites-only" restaurant and fought with a white gang. The story was later disputed, and several of Ali's friends, including Bundini Brown and photographer Howard Bingham, denied it. Brown told Sports Illustrated writer Mark Kram, "Honkies sure bought into that one!" Thomas Hauser's biography of Ali stated that Ali was refused service at the diner but that he lost his medal a year after he won it. Ali received a replacement medal at a basketball intermission during the 1996 Olympics in Atlanta, where he lit the torch to start the games.
Question: What did his parents do for a living?
Answer: Cassius Marcellus Clay Sr. (1912-1990), who himself was named in honor of the 19th-century Republican politician and staunch abolitionist,

Problem: Background: Marin Cilic (Croatian pronunciation: [mari:n tSi:litc]; born 28 September 1988) is a Croatian professional tennis player. Over the course of his career, Cilic has won 17 ATP singles titles, including the 2014 US Open. His career-high singles ranking is world No. 3, achieved on 28 January 2018. Cilic first came to international prominence by defeating then-World No. 2 Andy Murray in the fourth round of the 2009 US Open, and then reaching the semi-finals at the Australian Open a few months later.
Context: In 2008, Cilic reached the semifinals at the Chennai Open, in both singles and doubles. In the singles, he was defeated by Mikhail Youzhny, who went on to win the tournament. Cilic made it to the fourth round of the 2008 Australian Open, taking out two seeds on his way, including 2007 Australian Open finalist Fernando Gonzalez. James Blake beat him in the fourth round. He had achieved his goal for the year of reaching the top 40. His fourth-round result at the Australian Open put him at no. 39 in the ATP rankings.  Cilic also made it to the fourth round of Wimbledon, beating Jarkko Nieminen in five sets in the second round and knocking-out fourteenth seed Paul-Henri Mathieu. At the 2008 Olympics, he reached the second round of the men's singles, beating Juan Monaco before losing to Fernando Gonzalez. He lost in straight sets to Arnaud Clement. At the Canada Masters, he defeated Andy Roddick in reaching the quarterfinal stage, giving his best performance in a Masters Series tournament to date. He lost in three sets to Gilles Simon in the quarterfinals.  Cilic played the Pilot Pen Tennis tournament in New Haven, Connecticut, where he won his first ATP title. He defeated Viktor Troicki, Jurgen Melzer, and Igor Andreev in early rounds, then 2007 finalist Mardy Fish in the final. Cilic, seeded for the first time at a Grand Slam, reached the third round of the US Open, but lost to Novak Djokovic in a match that lasted almost four hours. Cilic came back from a break down in each of the second, third, and fourth sets. In the first round, he had defeated Julien Benneteau in five sets in a match that lasted more than four hours, winning the deciding set.
Question: Was there any controversy during this time?
Answer: