Sean King III had a UFC debut to remember, slamming Jessie Rosas into the mat and scoring a devastating knockout win just 36 seconds into their featherweight bout at Noche UFC on Saturday in Glendale, Arizona.
King followed up with a few punches on the ground before the referee stepped in.
For U.S. viewers:
SEAN KING III WITH AN UNREAL SLAM AND KO 😳
📺 @paramountplus pic.twitter.com/czaUMJAzOd
— UFC on Paramount+ (@UFConParamount) September 12, 2026
For Canadian viewers:
SLAM KO 😱 #NocheUFC
Sean King III improves to 7-0 after the 1st RD finish! pic.twitter.com/zm8VwgHzFC
— UFC Canada (@UFC_CA) September 12, 2026
King, a 22-year-old fighting out of Louisiana, improved his professional record to 7-0. He’s 4-0 this year after winning three straight fights under the Fury FC banner between February and July.
Rosas, the 23-year-old older brother of UFC bantamweight Raul Rosas Jr., was also making his Octagon debut. He fell to 8-2 as a pro.