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Tyson Fury taunts Deontay Wilder during the Deontay Wilder v Tyson Fury weigh-in at Los Angeles Convention Center. Harry How/Getty Images

It is rare for two elite and undefeated heavyweights to meet in the current boxing era, but that will be the case Saturday, when American Deontay Wilder (40-0, 39 KOs) faces Brit and former champion Tyson Fury (27-0, 19 KOs) at Staples Center in Los Angeles.

Wilder is the WBC heavyweight champion, while Fury, who has had substance-abuse issues, previously held the WBA (super) IBF, WBO, IBO, The Ring and the lineal heavyweight titles after edging boxing legend Wladimir Klitschko in 2015.

Size and height is a top storyline. At the weigh-in, Wilder looked trim at 212.4 pounds, while Fury appeared to be a bit out of shape at 256.6 pounds, though it was the lightest he's weighed in his three most recent fights. Both boxers are quite tall, with Wilder standing at 6-foot-7 and Fury listed at nearly 6-foot-9. Wilder has an 83-inch reach and Fury has an 85-inch reach.

The actual start time of the fight should be at about 11:15 p.m. ET. Showtime pay-per-view will carry the fight in the U.S., while BT Sport Box Office will have the fight in the U.K.

Wilder enters as the clear favorite.

Most boxing experts and writers believe Wilder will hold off Fury.

Teddy Atlas (former trainer; ESPN) - Wilder by KO

Joe Cortez (former referee; ESPN Deportes) - Wilder by KO

George Foreman (former heavyweight) - Wilder by decision

David Haye (British heavyweight) - Wilder by KO

Anthony Joshua (heavyweight champion) - Wilder by KO

Max Kellerman (ESPN) - Wilder (by KO, or TKO or decision)

Steve Kim (ESPN) - Fury by decision

Dan Rafael (ESPN) - Wilder by KO

Jorge Eduardo Sanchez (ESPN Deportes ) - Fury by decision

George Willis (New York Post) - Wilder by KO

Bobby Ilich (International Business Times) - Wilder by TKO

Anthony Riccobono (International Business Times) - Wilder by KO