Question: Whom did Ron Lyle and Oscar Bonavena both box?
Context: Oscar Natalio "Ringo" Bonavena (September 25, 1942 – May 22, 1976) was an Argentinian heavyweight professional boxer with a career record of 58 wins, 9 losses and 1 draw.  A rugged, wild-swinging puncher, he was nicknamed "Ringo" because of his Beatles haircut, and enjoyed professional success in both Argentina and the United States.  He is most famous for giving both Joe Frazier and Muhammad Ali tough battles. Facing Ali is a 2009 documentary directed by Pete McCormack about Muhammad Ali (born Cassius Marcellus Clay, Jr. in Louisville, Kentucky) as told from the perspectives of some of the notable opponents he faced during his career: George Chuvalo, Sir Henry Cooper, George Foreman, "Smokin'" Joe Frazier, Larry Holmes (a former sparring partner of Ali), Ron Lyle, Ken Norton, Earnie Shavers, Leon Spinks and Ernie Terrell. Ronald "Ron" Lyle (February 12, 1941 – November 26, 2011) was an American professional boxer who competed from 1971 to 1980, and in 1995.  He challenged once for the undisputed world heavyweight title, losing to Muhammad Ali in 1975.  Lyle was known for his punching power, crowd-pleasing fighting style, as well as courage and determination inside the ring.  He held notable wins over Buster Mathis, Oscar Bonavena, Jimmy Ellis, Earnie Shavers, Joe Bugner, and Scott LeDoux, but is best known for his slugfest against George Foreman in 1976, which won Fight of the Year honors by "The Ring" magazine. Muhammad Ali and Ron Lyle fought a boxing match on May 16, 1975.  Ali won the bout through a technical knockout in the 11th round. Heavyweight boxers Muhammad Ali and Oscar Bonavena fought at Madison Square Garden in New York City on December 7, 1970.  Ali won the bout through a technical knockout in the 15th round. L. Ron Hubbard, Messiah or Madman? , is a posthumous biography of Scientology founder L. Ron Hubbard written by Bent Corydon, which makes extensive use of interviews he conducted with Hubbard's son Ronald DeWolf.  Though originally published in 1987 by Lyle Stuart Inc., the book was re-issued in a paperback edition on July 25, 1992 and a hardcover edition in October 1995, both by publisher Barricade Books.  The 1995 edition also featured Brian Ambry as principal researcher.  The first edition of the book listed DeWolf as coauthor. Facing Ali is a 2002 book authored by Stephen Brunt; it is about fifteen different fighters from around the world who battled with Muhammad Ali in boxing fights.  In each chapter of the book, one of the selected fighters recalls the experience of fighting with Ali.  The profiled fighters include Ali's famous opponents like George Foreman, Joe Frazier, and Ken Norton; and also the relatively obscure like the German butcher Jurgen Blin who "was back at work at the sausage factory" after having fought with Ali the previous day.  Other fighters profiled in the book include Tunney Hunsaker, Jean Pierre Coopman, Henry Cooper, Ron Lyle, Chuck Wepner, George Chuvalo and Larry Holmes. Jimmy Young (November 14, 1948 – February 20, 2005) was an American heavyweight professional boxer.  Young was known for his awkward, defensive style and counterpunching.  He had his greatest success at during the mid 1970s, most notably when he beat George Foreman in 1977 and lost the year beforehand a disputed decision against Muhammad Ali.  Young fought many significant fighters of his era, including twice outpointing Ron Lyle and losing only by a split decision to then-number one contender Ken Norton in a title eliminator in late 1977. Geno Arce (born in Portland, Oregon), started playing bass in the clubs at age 16 opening for bands like Black 'n Blue and Fire Eye.  Graduating from high school in 1982, he joined the navy and did his stint for his country.  After receiving an honorable discharge, he returned to Portland for a short while and then relocated to Phoenix Arizona.  While in Phoenix Geno performed on the local scene and in Los Angeles with the bands “Syngin, SX, and Box of Cherries, which later became “The Einsteins.”  In 1998 Geno joined forces with Ron Keel to form the “Roadhouse Rattlers” and began his journey into Southern Rock and Country Music.  In 1999 Ron Keel had to take a trip to Europe and Geno Joined Phoenix Arizona’s “Harry and the Gila Monsters" furthering a career in country music that would allow him to share the stage with acts such as Brooks and Dunn, Reba McIntyre, Montgomery Gentry, Neal McCoy, and many others.  In 2000, Geno and Ron Keel were reunited, moved to Plain City Ohio where they formed the international southern rock band “IronHorse” consisting of Ron Keel vocals, Geno Arce Bass, Robert Marcelo Guitar, and Gaetano Nicolosi on drums.  During its five year lifetime IronHorse performed all throughout the United States opening for bands such as “The Outlaws and Ted Nugent” In 2008 Geno Joined the all original lineup of Keel consisting of Ron Keel, Marc Ferrari, Bryan Jay, Dwain Miller and replacing bassist Kenny Chaisson.  In June 2016 Geno was asked by Ron Keel to join him in another project called Badlands House Band.  This band is part of a larger project in Sioux Falls SD called Badlands Pawn.  and the brain child of Chuck Brennan. OSCAR I (aka OSCAR 1) is the first amateur radio satellite launched by Project OSCAR into Low Earth Orbit.  OSCAR I was launched December 12, 1961 by a Thor-DM21 Agena B launcher from Vandenberg Air Force Base, Lompoc, California.  The satellite, a rectangular box (30 x 25 x 12 cm) weighing 10 kg., was launched as a secondary payload (ballast) for Corona 9029, also known as Discoverer 36, the eighth and final launch of a KH-3 satellite.
Answer: Muhammad Ali