PFL 4 takes place tonight at NYCB LIVE in Uniondale, N.Y., on Long Island, with a main card that airs on NBCSN following prelims on Facebook beginning at 6:15 p.m. ET. You can follow along here with MMAjunkie.

In the main event, former WSOF featherweight champion Lance Palmer (13-3) takes on Jumabieke Tuerxun (20-7-1). Palmer won his first fight of the season three weeks ago with a second-round submission of Bekbulat Magomedov at PFL 1, giving him five points. Tuerxun lost his fight at the same event to Andre Harrison by unanimous decision.

The card will be made of second fights in the two-fight regular season for featherweights and heavyweights, who hope to advance to the playoffs for a shot at the $1 million grand prize in their respective division.

Full PFL 4 results include:

MAIN CARD (NBCSN, 9 p.m. ET)

• Lance Palmer def. Juma Tuerxun via submission (rear-naked choke) – Round 3, 4:34
• Andre Harrison def. Nazareno Malegarie via unanimous decision (30-27, 30-27, 30-27)
• Francimar Barroso def. Jack May via submission (arm-triangle choke) – Round 1, 1:36
• Steven Siler def. Alexandre Almeida via submission (guillotine choke) – Round 1, 0:35
• Philipe Lins def. Alex Nicholson via TKO (punches) – Round 2, 3:39

PRELIMINARY CARD (Facebook, 6:15 p.m. ET)

• Kelvin Tiller def. Jared Rosholt via submission (guillotine choke) – Round 2, 0:54
• Timur Valiev def. Bekbulat Magomedov via unanimous decision (30-27, 30-27, 30-27)
• Max Coga def. Marcos Galvao via TKO (punches) – Round 3, 2:19
• Josh Copeland def. Shawn Jordan via unanimous decision (29-28, 29-28, 29-28)
• Valdrin Istrefi def. Daniel Gallemore via TKO (referee stoppage) – Round 2, 1:42

For complete coverage of PFL 4, visit the MMA events section of the site.