Question: The Lennox Lewis vs. Michael Grant was what weight division?

Context paragraphs:
Lennox Lewis vs. Frank Bruno: Lennox Lewis vs. Frank Bruno was a boxing match that took place at the then National Stadium, Cardiff Arms Park, in Wales on 1 October 1993.  It was between WBC heavyweight champion Lennox Lewis, who was making the second defence of his title and Frank Bruno, who was fighting in his third world title bout, his two previous title fights were unsuccessful.  Lewis beat Bruno by a technical knockout in the seventh round.

Lennox Lewis vs. David Tua: Lennox Lewis vs. David Tua, billed as "Royal Rampage", was a professional boxing match contested on November 11, 2000 for the WBC, IBF, IBO and "Lineal" Heavyweight championships.

Lennox Lewis vs. Francois Botha: Lennox Lewis vs. Francois Botha, billed as "The Homecoming", was a professional boxing match contested on July 15, 2000 for the WBC, IBF, IBO and "Lineal" Heavyweight Championships.

Lennox Lewis vs. Phil Jackson: Lennox Lewis vs. Phil Jackson was a professional boxing match contested on May 6, 1994 for the WBC Heavyweight Championship.

Lennox Lewis vs. Željko Mavrović: Lennox Lewis vs. Željko Mavrović, billed as "Battle of the Giants", was a professional boxing match contested on September 26, 1998 for the WBC and "Lineal" Heavyweight Championships.

Lennox Lewis vs. Mike Tyson: Lennox Lewis vs. Mike Tyson, billed as "Lewis–Tyson: Is On", was a professional boxing match that took place on June 8, 2002 at the Pyramid Arena in Memphis, Tennessee, United States, between IBF, IBO and WBC heavyweight champion Lennox Lewis and former IBF, WBA and WBC heavyweight champion Mike Tyson.  The fight was for Lewis' heavyweight championship titles.  Lewis defeated Tyson by knockout in the eighth round.

Michael Grant (boxer): Michael Anthony Grant (born August 4, 1972) is an American professional boxer and world heavyweight title challenger.  Before his boxing career, he blossomed into a three-sport star at Chicago's Harper High School.  He was a right handed pitcher who drew attention from the Kansas City Royals, an imposing two-way player at tight end and defensive end on the football field and a front court force on the basketball court.  Grant graduated in 1991 and went on to play American Football at Mount San Antonio College near Los Angeles, and Fullerton College in Orange County, California.  At 6'7", he was a towering defensive end looking to leap to a major college program.  But poor grades forced him to the sidelines.

Lennox Lewis vs. Oliver McCall: Lennox Lewis vs. Oliver McCall, billed "Whose Moment of Glory", was a professional boxing match contested on September 24, 1994 for the WBC Heavyweight Championship.

Lennox Lewis vs. Donovan Ruddock: Lennox Lewis vs. Donovan Ruddock, billed as "The Fight for the Right" was a professional boxing match contested on October 31, 1992.  The fight was a WBC heavyweight title "eliminator", with the winner scheduled to challenge the winner of the Evander Holyfield–Riddick Bowe championship bout held two weeks later.  In addition, Lewis' Commonwealth heavyweight title was also on the line.

Lennox Lewis vs. Michael Grant: Lennox Lewis vs. Michael Grant, billed as "Two Big", was a professional boxing match contested on April 29, 2000 for the WBC, IBF, IBO and "Lineal" Heavyweight Championship.

Supporting paragraphs: Lennox Lewis vs. Michael Grant Michael Grant (boxer)
Answer: Heavyweight