How to watch Mayweather vs Canelo online: Live stream fight details, results, start time and more for Showtime boxing PPV TONIGHT!

TO WATCH FULL "MAYWEATHER VS. CANELO" MAIN EVENT VIDEO HIGHLIGHTS FROM LAST NIGHT ONLINE CLICK HERE!!!

"The One" has finally arrived.

Boxing is back on tonight (Sept. 14, 2013) with its biggest box office draw, Floyd Mayweather Jr., who stands to make more than $100 million, putting his WBA Super Light Middleweight (154 pounds) title -- along with his top pound-for-pound fighter status -- on the line against Mexican-born WBA and WBC Light Middleweight Champion, Saul "Canelo" Alvarez, in a 152-pound catchweight showdown at MGM Grand Garden Arena in Las Vegas, Nevada.

"Mayweather vs. Canelo" starts at roughly 9 p.m. ET with a live stream of the under card bouts, including Danny Garcia and Lucas Matthysse, who will collide in the championship co-main event of the evening, while Junior Middleweight champion Ishe Smith will defend his title against Carlos Molina and Welterweight standouts Ashley Theophane and Pablo Cesar Cano lock horns in a 10-round battle.

It's a blockbuster boxing bonanza that has been dubbed "The One," airing on Showtime pay-per-view (PPV). MMAmania will have LIVE results, coverage and updates of "Mayweather vs. Canelo" all night, starting with the Showtime broadcast at 9 p.m. ET RIGHT HERE.

To watch the pay-per-view (PPV), which, of course, features the big Floyd Mayweather Jr. vs. Canel Alvarez prize fight in the main event, as well as the other aforementioned match ups, you can call up Comcast or your local cable and/or satellite provider (DirecTV, DISH Network, etc.) and order the show on your television. There is also a helpful and comprehensive list of cable providers featured on inDemand.com for your convenience.

International viewing options include, but are not limited to:

• United States: Showtime PPV ($64.95-74.95)
• United Kingdom: BoxNation (subscription)
• Mexico: Televisa
• Australia: Main Event PPV ($39.95)
• Panama: RPC Channel 4
• Denmark: TV 3 Sport 2

"Mayweather vs. Canelo" will be unavailable to purchase online, unless you live in the United Kingdom, where LiveSport TV for BoxNation offers the option for its subscribers (more details here).

Of course, you can catch the combat sports action at a local sports bar, which you can search for in your area (in the United States) right here. And "Mayweather vs. Canelo" is also available to watch in movie theaters across the nation in closed-circuit, a list that you can search right here.

However, if you need your "Mayweather vs. Canelo" results as soon as possible, for free, MMAmania.com will deliver up-to-the-minute results and live fight coverage, including round-by-round, blow-by-blow coverage of all the Showtime PPV boxing action before, during and after the event RIGHT HERE.

More details on the Mayweather vs. Canelo main card, who is fighting who, as well as how to keep yourself updated all night long, below:

152 lbs.: Floyd Mayweather vs. Saul Alvarez
140 lbs.: Danny Garcia vs. Lucas Matthysse
154 lbs.: Ishe Smith vs. Carlos Molina
140 lbs.: Ashley Theophane vs. Pablo Cesar Cano

Remember, too, that our under card quick results will begin to flow around 7 p.m. ET later this evening and run right on through to our main card PPV coverage, which is set to start at 9 p.m. ET, from the MGM Grand Garden Arena in Las Vegas, Nevada. Expect Mayweather and Canelo to enter the squared circle around midnight.

To get up to speed on all the news and notes for Mayweather vs. Canelo be sure to hit up our comprehensive event story stream right here.

Fight coverage: Mayweather vs. Canelo Alvarez

• Preview: Mayweather-Canelo is a true superfight

• Mayweather could make $100 million for fight | Record-setting gate

• Mayweather vs. Canelo undercard workout highlights

• Photos and quotes: Mayweather-Canelo final presser | Angel Garcia's rant

• Picks: Fighters heavily favor Mayweather to win