Mayweather vs. Guerrero 'All Access' on Showtime full video online (Episode 4)

"Money" talks ... are you willing to listen?

If so, the Showtime network has you covered. In preparation for the return of pound-for-pound king Floyd Mayweather Jr., who is booked for a Saturday night showdown against four-division champion Robert Guerrero on May 4, 2013 at the MGM Grand Garden Arena in Las Vegas, Nevada, the network has given viewers an "All Access" pass to their preparations, the final episode of which can be found above.

You can watch episodes one, two, and three, by clicking here, here, and here.

After defeating a surprisingly-game Miguel Cotto in early 2012, Mayweather was forced to put his career temporarily on hold after domestic abuse charges earned him a nine-week stint in the clink. By the time he laces up the gloves to face Guerrero, 364 days will have passed since the "Junito" showdown.

While ring rust would be a concern for most people, Mayweather had a longer layoff between his fights against Shane Mosley and Victor Ortiz and has not fought twice in a calendar year since 2007. He currently owns the WBC welterweight title, which he earned by knocking out "Vicious."

Guerrero, who owns the interim version of the same belt, had a busy 2012, jumping directly from lightweight (135 pounds) to welterweight (147) to grind down gritty veteran Selcuk Aydin for the strap. He went on to take out Andre Berto in a fight that demonstrated a newfound (and highly effective) mean streak in "The Ghost," who managed to knock down Berto twice in the first round and swell his eye shut.

It's an incredibly intriguing match up, and one that MMAmania.com has been on top of all week and will continue to be on top of tonight.

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 Guerrero to enter the squared circle around midnight.

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

Stay tuned!