The Chelsea at The Cosmopolitan in Las Vegas will be busy in mid-December with plenty of fists flying.

That will be the venue for WSOF 26, promotion officials confirmed to MMAjunkie. The event is set for Dec. 18 in “Sin City,” as MMAjunkie reported on Tuesday. In the main event, featherweight champion Lance Palmer (10-1) is expected to defend his title against the winner of Saturday’s fight between Alexandre Almeida (16-5) and Saul Almeida (18-5).

Tickets for WSOF 26 will go on sale Friday through Ticketmaster and the venue box office.

The Las Vegas-based promotion regularly holds events in its home city – WSOF 26 will be the eighth event in the promotion’s history to take place there. But it will be the first to take place at The Chelsea.

The week prior, the venue hosts a pair of UFC events on back-to-back nights with UFC Fight Night 80 on Dec. 10 and the TUF 22 Finale on Dec. 11.

Also penciled in for WSOF 26 is a light heavyweight matchup featuring famed striking specialist Tyrone Spong (2-0). The “King of the Ring” has not competed in an MMA match since WSOF 4 in August 2013. He’s spent much of the past year on the sidelines after he suffered a broken leg throwing a kick in a GLORY kickboxing match in August 2014.

“We have a big card,” WSOF Vice President Ali Abdelaziz told MMAjunkie. “Spong is coming back, Lance Palmer’s coming back, and we’re working on some matchups. It’s going to be great. We are looking forward to it and it’s going to be awesome.”

For more on WSOF 26, check out the MMA Rumors section of the site.