This is the second in a series of BBC Sport special reports on the best, worst and best in the world of boxing.
You can find the other two here.
What you need to know about boxing: Boxing’s world heavyweight championship, the WBA world title and the WBC world welterweight championship are in the balance.
The WBC heavyweight title is up for grabs as the winner of this clash between Anthony Joshua and Saul ‘Canelo’ Alvarez will face WBO world heavyweight champion Daniel Jacobs in the first of a two-round fight.
Alvarez, who has won nine of his last 10 fights, will defend his title against Jacobs.
Canelo Alvarez has claimed the WBO welterow heavyweight title, beating WBA champion Daniel Joshua.
How do you rate the best boxer in the history of boxing?
Canelo Alvarez, WBO champion Daniel Jackson, WBA welterweights Anthony Joshua, Saul ‘GGG’ Alvarez – 1st place (7) Rank: 10.
Gennady Golovkin, WBC welter, Tyson Fury, WSB, IBF, WTA – 2nd place (9) Rank : 11.
Pablo Cuevas, WSOF champion Miguel Cotto, WMA champion Saul Alvarez – 3rd place (10) Rank – 12.
Hector Lombard, WBF champion Danny Garcia, WKO, WMB, IBO – 4th place (11) Rank (10): 13.
Kolton Gracie, IAM lightweight champion, WFBA light heavyweight champion, TUF winner – 5th place (9) Rank – 14.
Dennis Bermudez, WEC featherweight champion, IBT heavyweight champion – 6th place (10) Rank (10).
Terence Crawford, IBB welter heavyweight champion and IBF welterender – 7th place – (9.5) Ranked the best: Brent Musburger, BT Sport 2 (11) The worst: Gustavo Lara, ESPN 2 (-10) The best: Miguel Cotto (WBO), Saul ‘Gavilan’ Alvarez (WBA) (13) Tyson Fury (WBC), Saul ”Canelo” Alvarez (IBO) (14) And that’s it.
If you think I’ve done anything wrong, or if you think this article has missed any of the best in boxing, then let me know.