A rumored December 19 Strikeforce event at the HP Pavilion in San Jose, California was made official at Thursday’s “Fedor vs. Rogers” press conference, with Strikeforce’s Scott Coker announcing that the Showtime-televised “Evolution” event will feature Ronaldo “Jacare” Souza’s Strikeforce debut against fellow newcomer Matt Lindland as well as the debut of Muhammed “King Mo” Lawal.

Strikeforce’s December 19th is beginning to shape up, fighters already rumored for the event include Robbie Lawler, and Scott Smith. Now joining them is a proposed middleweight match up between Matt Lindland and Ronald “Jacare” Souza, and the promotional debut of Muhammed “King Mo” Lawal against an as yet unknown opponent.

Read about the latest Strikeforce news after the jump, including changes to “Fedor vs. Rogers”, changes to Strikeforce Challengers 5, and more.

Heavyweight prospect Muhammed “King Mo” Lawal kept his undefeated record intact against Mark Kerr in the main event of M-1 Global: Breakthrough on Friday in Kansas City, knocking out the veteran just 25-seconds into their headlining matchup to cap off the HDNet-televised event.

In a special sparring exhibition featured on the main card, top-ranked heavyweight Fedor Emelianenko made easy work of Strikeforce light heavyweight champion Gegard Mousasi, following up a series of seemingly-easy takedowns with a fight-ending armbar.

A light heavyweight matchup between Sengoku veteran and former NCAA wrestling champion Muhammed “King Mo” Lawal (4-0) and two-time UFC tournament winner and former NCAA All-American Mark Kerr (15-10) headlines Friday’s “M-1 Global: Breakthrough” event at the Memorial Hall in Kansas City.

The HDNet-televised event also features a special sparring exhibition between top-ranked heavyweight Fedor Emelianenko and Strikeforce light heavyweight champion Gegard Mousasi.

On Saturday, MMAFrenzy.com reported that Don Fry had pulled out of his M-1 Breakthrough bout, which had been moved from Los Angeles to Kansas. A replacement has been found to face his scheduled opponent, Muhammed "King Mo" Lawal at the event, in another aging legend, Mark Kerr.

Also added to the August 28th card is a special exhibition match between Fedor Emelianenko and Gegard Mousasi.

Don Frye has withdrawn from a matchup against Muhammed “King Mo” Lawal which was to headline M-1 Global’s August 28 “Breakthrough” event after the card was recently moved from Los Angeles to Kansas City.

Ricardo Arona vs. Marvin Eastman, Paulo Filho vs. Alex Schoenauer, and Pedro Rizzo vs. Jeff Monson are set for Bitetti Combat on September 12 in Brazil, Muhammed “King Mo” Lawal will face Don Frye at M-1 Global’s “Breakthrough” event on August 28 in Los Angeles, Eliot Marshall vs. Jason Brilz has been added to UFC 103, and the Palace Fighting Championship has ceased operations.

Read all about these stories and more in MMAFrenzy.com’s latest quick hits…

All twenty fighters slated to participate in bouts at Sengoku Seventh Battle made weight earlier today in Japan. The event takes place overnight (HDNet - 3am ET/midnight PT) at the National Yoyogi Stadium in Tokyo, Japan.