Warning: Manny Pacquiao vs Floyd Mayweather fight might start early tonight on PPV

Executives from both pay-per-view (PPV) providers, HBO and Showtime, are a bit concerned heading into the historic broadcast later this evening (Sat., May 2, 2015) inside MGM Grand Garden Arena in Las Vegas, Nevada.

Read next: Read our Pacquiao vs. Mayweather 2015 recap.

When Floyd Mayweather and Manny Pacquiao are not fighting each other, the boxing superstars can delay their entrances for various reasons, superstitions and/or egos. Typically, main event walkouts begin sometime around midnight; however, typically there are more than two bouts on the PPV undercard.

With just a pair of bouts (see the full fight card here), one would imagine that the production team is trying to avoid the blockbuster main event starting at, for example, 1 a.m. ET or later, taking into consideration the excessive pomp and circumstance that will probably look more like a Super Bowl than a prize fight. On the flip side, if the two PPV undercard matches finish quick, the call to the lockerooms of Mayweather and Pacquiao could come sooner than later.

Stephen Espinoza, Executive Vice President and General Manager for Showtime Sports and Event Programming explained the situation earlier this week at the final pre-fight press conference (watch the video replay here).

"We have two undercard fights and we go live at 9 p.m. ET. No one knows how long those fights will go and we want to make sure no one misses one minute of the main event. The night could move quickly, so we just want to ensure that fans are aware and tune in early. Make sure you don’t miss a minute of this event."

If the PPV undercard fights -- WBC Super Bantamweight World Champion Leo "El Terremoto" Santa Cruz (29-0-1, 17 KOs) vs. Jose Cayetano (17-3, 8 KOs) and WBO Featherweight Champion Vasyl Lomachenko (3-1, 1 KO) vs. Gamalier Rodriguez (25-2-3, 17 KOs) -- end sooner than expected, the broadcast team will probably fill the time with too much analysis and video packages we've already seen 10 times before.

In other words, expect a heavy dose of "hurry up and wait" this evening. Regardless, to be on the safe side, tune in no later than 11 p.m. ET.

To find out how to watch the Floyd Mayweather vs. Manny Pacquiao-led PPV event click here. Remember, too, that MMAmania.com will deliver LIVE round-by-round coverage of "Mayweather vs. Pacquiao" tonight, starting with the PPV broadcast at 9 p.m. ET RIGHT HERE.