Floyd Mayweather Jr.

IBF welterweight titleholder Devon Alexander has been ordered to make his next defense against unbeaten Kevin Bizier, whom he could face as part of the May 18 Peterson-Matthysse card on Showtime.

Saturday's RING junior middleweight championship clash of unbeatens Saul "Canelo" Alvarez and Austin Trout is another bout that is too close to call during what is shaping up as a year of upsets.

Tyson Fury, Steve Cunningham and others offered their thoughts on who will win Saturday night's junior featherweight unification bout between Nonito Donaire and Guillermo Rigondeaux.

RING junior featherweight champ Nonito Donaire on clash with Guillermo Rigondeaux on Saturday: "When it comes down to the title fights, we're both aggressive and we can both be offensive guys."

Showtime's five-part documentary series All-Access: Mayweather vs. Guerrero will premiere on Wednesday in advance of their May 4 pay-per-view fight at MGM Grand in Las Vegas. Respected Hip-Hop artist and actor Common will narrate the series. 

"I'm going to win. Without a doubt, I'm going to win. This fight is personal because Trout beat my brother," Saul Alvarez said of his April 20 championship match with Austin Trout in Showtime's All-Access: Canelo vs. Trout Preview.

Former WBC 122-pound titleholder Abner Mares on the Nonito Donaire-Guillermo Rigondeaux junior featherwieght championship bout: "I see Nonito winning by knockout. I estimate a seven-round knockout by Nonito if Rigondeaux doesn't just run and box all night."

A new deal between Golden Boy and Fox Sports will result in a new Monday boxing series and allow fans to rewatch classic bouts from the promoter's fight library featuring Floyd Mayweather, Oscar De La Hoya, Manny Pacquiao and Bernard Hopkins, among others.

Floyd Mayweather called Robert Guerrero "a solid, tough competitor" during Saturday night's interview on CBS between games during the NCAA's Final Four.

Echoing the famous words of Mike Tyson, Danny Garcia says his opponents "think they're going to beat me until we get into that ring. Until they get hit."

Junior middleweight contender Erislandy Lara: "If I could pick my next three fights, it would first start with the winner of the fight between Canelo Alvarez-Austin Trout, and then I would want to fight Sergio Martinez or Floyd Mayweather."

Amir Khan's April 27 clash with Julio Diaz will be shown following Danny Garcia's attempt to defend his RING, WBA and WBC titles against Zab Judah on Showtime.

Showtime's one-hour documentary 30 days in May gives a glimpse of Floyd Mayweather's 87-day jail stay in the Clark County Detention Center last year in advance of his May 4 showdown with Robert Guerrero. The show airs tonight at 10:00 p.m. ET/PT.

Unbeaten welterweight Keith Thurman says he would like to face Paulie Malignaggi, Tim Bradley and Floyd Mayweather, in order.

Former welterweight and junior middleweight champ Shane Mosley will return to the ring on May 18 to face Pablo Cesar Cano in a Fox Deportes-televised 147-pound bout in Cancun.

Former IBF bantamweight titleholder Leo Santa Cruz and undefeatd middleweight prospect J'Leon Love will compete in separate bouts on the undercard of the May 4 Floyd Mayweather-Robert Guerrero Showtime Pay Per View event.

Closed circuit tickets for the May 4 Showtime Pay Per View-televised clash between Floyd Mayweather and Robert Guerrero will go on sale on Wednesday at 10 a.m.

Showtime's 30 Days In May chronicles Floyd Mayweather's jail stint at the Clark County Detention Center from June 1 to Aug. 3 of last year.

Robert Guerrero was arrested on Thursday morning at New York's John F. Kennedy Airport for attempting to board an airplane with an unloaded handgun.

Unbeaten super middleweight contender Edwin Rodriguez will face Ezequiel Osvaldo Maderna as part of Saturday night's Monte Carlo Million Dollar Super Four tournament.

"I believe God put me here to humble Floyd Mayweather, and it is going to happen," said Robert Guerrero, who, with his wife, Casey, visited the set of Good Morning America on Tuesday.

Fans will have the option of watching Floyd Mayweather's May 4 defense against Robert Guerrero on the big screen in movie theaters.

Robert Guerrero visited the sets of two of the biggest Christian networks with Monday's appearances on CBN's The 700 Club, hosted by Pat Robertson, and TBN's Praise the Lord show with Carman Licciardello.

Robert Guerrero: "I'm very excited that I'll be able to use my platform in boxing to talk about my faith in Jesus Christ."

Lamont Peterson on the hard-hitting Lucas Matthysse: "I don't think he's going to pose any problems for me."

Floyd Mayweather and Robert Guerrero have picked Indiana and Butler, respectively, to emerge from the East Regional and to win the entire NCAA tournament.

Showtime has a mega promotional series planned in advance of the May 4 clash between Floyd Mayweather and Robert Guerrero. 

Manny Pacquiao's advisor said the rift between HBO and Golden Boy does not concern the fighter, and claims both Showtime and HBO are in the running to televise Pacquiao's next bout. Pacquiao's promoter Bob Arum says that's hogwash, the Filipino icon's next bout will be on HBO.

Saul Alvarez on Austin Trout: "This fight for me is personal."

Floyd Mayweather Jr. will be the focus of the "10 questions" segment during Wednesday's broadcast of Jim Rome on Showtime. 

Unbeaten Keith Thurman: "I'm old school. I want to be that Sugar Ray Leonard type of champion. That Tommy Hearns type of champion. The Roberto Duran champion. Aaron Pryor. Marvin Hagler. That's what Keith Thurman's about."

Floyd Mayweather on Robert Guerrero: "42 have tried, 42 have failed. He will be number 43."   

HBO rather than Showtime will televise unbeaten Adrien Broner's rise into the welterweight division to challenge WBA beltholder Paulie Malignaggi at Barclays Center on June 22.

Although Paulie Malignaggi is employed as a Showtime commentator, the possibility exists that he could face Adrien Broner on HBO on June 22 at Barclays Center. 

Robert Guerrero on Floyd Mayweather: "He's not that big. Floyd's not like Andre Berto, who, I mean, was just bulked up and huge. But you've got to respect Floyd, because, I mean, he's fast, he's slick and he's smart and he's a mastermind in the ring."

Oscar De La Hoya is picking Robert Guerrero to upset Floyd Mayweather and Canelo Alvarez to possibly stop Austin Trout in their upcoming fights.

Tim Bradley on Ruslan Provodnikov: "Absolutely, I'm looking to make a statement in this fight. I'm looking to do some damage to this guy."

WBO welterweight titleholder Tim Bradley will be out to overwhelm March 16 rival Ruslan Provodnikov, who has served as a sparring partner for Manny Pacquiao and scored knockouts in four of his five straight victories. 

Saul Alvarez says he's focused on his 154-pound title unification bout with Austin Trout on April 20, but he also says wants to headline a big show on Sept. 14 even if it competes with Floyd Mayweather's planned pay-per-view date.

Floyd Mayweather Jr. was keen on his May 4 defense against Mexican-American Robert Guerrero being complimented by an all-Mexican clash between Abner Mares and Daniel Ponce de Leon.

WBA junior middleweight beltholder Austin Trout says WBC counterpart Saul Alvarez "will not make it to Floyd Mayweather because he's going to lose to me."

Former 140-pound titleholder Amir Khan could get a stiff test from former 135-pound titleholder Julio Diaz on April 27 in Khan's native England.

WBA welterweight beltholder Paulie Malignaggi looks forward to calling Floyd Mayweather's bout on Showtime Pay Per View, and would also welcome the opportunity to fight on his undercard. 

The world should know soon whether it will witness a 154-pound clash of unbeatens between WBC beltholder Saul "Canelo" Alvarez and WBA titleholder Austin Trout.

Referee Tony Weeks on stopping IBF junior welterweight beltholder Lamont Peterson's triumph over ex-titleholder Kendall Holt in the eighth round: "Some fighters just have too much heart, and we have to save them from themselves."

Referee Tony Weeks will make his East Coast debut with Friday night's Lamont Peterson-Kendall Holt fight at The D.C. Armory in Washington, D.C.

Forbes estimates Floyd Mayweather's deal with Showtime as being worth more than a $250 million, although network boss Stephen Espinoza would not comment directly on the six-fight package.