The 13-bout lineup for the PFL’s second event is nearly complete, and it features the debut of a two-time Olympic gold medalist, as well as a little American Top Team vs. Blackzilians flavor.

PFL officials today confirmed with MMAjunkie that Luiz Firmino (20-8) vs. Will Brooks (18-4) headlines the NBCSN-broadcast portion of the event, while Olympic judoka Kayla Harrison (0-0) meets an opponent yet to be determined.

PFL 2 takes place June 21 at Chicago Theater. Four bouts air on NBCSN following nine bouts that stream on Facebook, though the night’s bout order has yet to be finalized.

“PFL 2 in Chicago will feature elite lightweight and light heavyweight fighters, each fighting to move one step closer to the Dec. 31 championship event,” PFL President of Fighting Operations Ray Sefo stated. “I can’t wait to see Will and Luiz and all of our fighters get after it.

“Our 12 regular-season fights will all be must-see TV because each of our elite 72 fighters are starting with the same chance to win the title and their share of the $10 million PFL championship prize pool that comes with it.”

While the night’s official bout order has yet to be finalized, Blackzilians vet Firmino and longtime American Top Team fighter Brooks will meet in the main event. The two Florida-based school have a standing rivalry, and Firmino admits it’s fueling his preparation.

“I don’t like ATT; I don’t like him,” Firmino told MMAjunkie. “I’m going to kill him in the first round.”

Meanwhile, Brooks makes his first appearance following a four-fight run under the UFC banner and seems more intent on progressing to PFL’s first-year playoffs rather than make any statement in a rivalry.

“Firmino is a tough fighter from what I’ve seen; he’s very game,” Brooks said. “I look forward to an opportunity to compete against him and set the tone for this tournament.

“I really don’t have anything to say about the ATT-Blackzilians thing. In my opinion, it doesn’t exist anymore.”

The PFL 2 lineup currently includes:

• Luiz Firmino vs. Will Brooks
• Jason High vs. Rashid Magomedov
• Rakim Cleveland vs. Rashid Yusupov
• Brian Foster vs. Ramsey Nijem
• Kayla Harrison vs. TBA
• Ronny Markes vs. Sean O'Connell
• Brandon Halsey vs. Smealinho Rama
• Yuki Kawana vs. Islam Mamedov
• Jason Butcher vs. Maxim Grishin
• Thiago Tavares vs. Robert Watley
• Natan Schulte vs. Chris Wade
• Bazigit Atajev vs. Dan Spohn
• Jamie Abdallah vs. Vinny Magalhaes

For more on PFL 2, check out the MMA Rumors section of the site.