Boxing: Mayweather dominates

Floyd Mayweather Jr. lands a left jab on Robert Guerrero in the fifth round. Mayweather raised his record to 44-0-0 and retained his welterweight crown.

Boxing: Mayweather dominates

LAS VEGAS - Floyd Mayweather Jr. fought as if he had never left the ring, coming back from a year's absence Saturday night to win a unanimous 12-round decision over Robert Guerrero in their welterweight title fight.

Mike Tyson cancels Tucson performance

Former boxing champ scraps Tucson due to scheduling conflicts

De Niro y García Bernal en cinta sobre Durán

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Tickets on sale Wednesday for Tyson's Tucson show

Prices start at $29.

Tyson bringing one-man show to Tucson

Former heavyweight boxing champion Mike Tyson is bringing his one-man show to Centennial Hall on Feb. 22.

Phoenix also getting Tyson's one-man show

Judgment day nears for rising Chavez Jr.

LAS VEGAS - He's the son of a great champion, and for most of his career that's about all Julio Cesar Chavez Jr. was known for.

Boxing: Mich. teen Claressa Shields a bright spot for awful US team

LONDON - Claressa Shields ducked one punch, deftly leaned away from another and stuck her tongue out at her Russian opponent. Just an American teenager having a little fun.

Boxing Patrick Finley: Eloy coach preparing boxers for Olympics

As a boxer, Joe Guzman went undefeated in Sadr City.

Boxing: Eloy native wanted Navy, got Army and ended up as a coach for Team USA

As a boxer, Joe Guzman went undefeated in Sadr City.

Boxing: Chavez stops Lee in seventh round, retains WBC belt

Julio Cesar Chavez Jr.'s victory put him in line for a title-unification fight with Sergio Martinez.

Boxing: Chavez stops Lee in seventh round, retains WBC belt

EL PASO - Julio Cesar Chavez Jr. recovered from a slow start he blamed on leg cramps and stopped Andy Lee at 2:21 of the seventh round Saturday night to retain the WBC middleweight title.

Boxer Johnny Tapia regarded as consummate underdog

ALBUQUERQUE, N.M. — Johnny Tapia, the five-time boxing champion whose turbulent career was marked by cocaine addiction, alcohol, depression and run-ins with the law, was found dead Sunday at his Albuquerque home. He was 45.

A unanimous decision for Mayweather

Floyd Mayweather Jr. throws a right at Miguel Cotto in the fifth round during a WBA super welterweight title fight Saturday in Las Vegas.

A unanimous decision for Mayweather

LAS VEGAS - Floyd Mayweather Jr. used his speed and accuracy to win a unanimous decision Saturday night over a game Miguel Cotto in one of his toughest fights ever.