Starting at 7 p.m. EST from the MGM Grand in Las Vegas, the deep undercard of the Pacquiao vs Marquez III show will stream live via Yahoo! Sports. You can watch the stream here, in the video below. We'll also have a post set up shortly for the pay-per-view undercard, and another for the main event. We do the separate threads so that those following on mobile or the SB Nation iPhone app can easier keep pace with the comments.

Here's the lineup for the streaming portion of the undercard:

Junior Welterweights, 6 Rounds
Jose Benavidez Jr (13-0, 12 KO) vs Samuel Santana (4-4-2, 0 KO)

Benavidez, 19, has been hyped by our site and many others as a true blue-chipper. This is just a stay-busy showcase for him, as he should win with ease. But he's worth watching -- catch him now and get on board early, if you haven't already done just that.

Welterweights, 8 Rounds
Dennis Laurente (40-4-5, 21 KO) vs Ayi Bruce (20-4, 12 KO)

A couple of battlers in this one. Laurente, 34, is a Filipino veteran who turned pro in 1994, although he didn't get his career really started until 1998. Ghana's Bruce, 25, is a decent club fighter who lost his last to Gabriel Rosado in July (TKO-5).

Super Flyweights, 8 Rounds
Fernando Lumacad (24-3-3, 11 KO) vs Joseph Rios (10-5-2, 4 KO)

A should win for 25-year-old Filipino Lumacad, who has struggled in steps up. This doesn't figure to be a step up.

Featherweights, 4 Rounds
Victor Pasillas (Pro Debut) vs Jose Garcia (0-3, 0 KO)