Start time -- 6 PM Russia, 3 PM UK/IRE, 10 AM US EST, 7 AM US PST

Commentary by former UFC heavyweight champion Frank Mir and British comedian Bryan Lacey

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With BAMMA 27, Bellator 169 and UFC Fight Night Sacramento already in the book it's been a crazy weekend of MMA, but it's not over yet.

Today, Absolute Championship Berkut (ACB) marks its 50th event, ACB 50, which takes place at the Sibur Arena in St Petersburg. It promises to be a bonkers fight card.

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The 13-fight card features world-class MMA from all over the world, and with three title fights finishing off the night, there should be no end of drama and must-see action. Headlining the bill will be the ACB heavyweight champion, Salimgerey Rasulov, who will defend his title against the heavy-hitting Denis Goltsov.

While the main event is an all-Russian affair, in the fight second from the top, the American Brett Cooper will face Russian fighter Aslambek Saidov for the vacant ACB welterweight title.

The third title could well be the show stealer, as Oleg Borisov faces ACB bantamweight champion Magomed Magomedov with the title on the line.
Earlier this year, Magomed was involved in one of the fights of the year, as he and fellow Russian Petr Yan went to war in a bruising, back-and-forth five-round war.

Magomed was the man who got his hand raised that night, and another successful defense of his title this weekend could well set up the rematch that all fight fans are clamoring for.

Elsewhere on the card, there is British interest in the form of bantamweight Ed Arthur, who takes on Tural Ragimov in the third fight of the night.
Arthur has long been considered one of best British fighters at 135-pounds and has been given high acclaim from the likes of UFC veteran Dan Hardy, who called him one of the best young talents on the UK circuit.

The Brit has gone 2-1 in his last three fights, with a win at BAMMA 25 over Cameron Else in May, a loss in his ACB debut against the previously mentioned title contender Petr Yan, and then mostly recently a win at ACB 47: Braveheart in October at ACB's first ever British event.

Arthur will have his work cut out this Sunday, but a win could put him amongst the elite in ACB's division. One thing for sure is that an Ed Arthur fight is never boring, so make sure you tune in from the outset in that one.

The other British fighter on the card is knockout artist Jake Bostwick, who takes on Aleksei Butorin in the seventh fight of the evening.

Bostwick is riding high off the back of a stunning knockout victory over Danny Mitchell at ACB 47: Braveheart and will come into the contest full of confidence, having recently been handed a multi-fight deal with the organization.

Butorin versus Bostwick is one those "blink and you could miss it" sort of fights, so make sure you don't take your eyes off the action on Sunday night when these two go to war in the ACB cage.

ACB 50 Fight Card

Salimgerey Rasulov vs. Denis Goltsov 265 lbs -- for ACB heavyweight title
Aslambek Saidov vs. Brett Cooper 170 lbs -- for ACB welterweight title
Magomed Magomedov vs. Oleg Borisov 135 lbs -- for ACB bantamweight title
Yusup Raisov vs. Marat Balaev 145 lbs
Beslan Isaev vs. Marcelo Alfaya 170 lbs
A. Sarnavskiy vs. Ramazan Esenbaev 155 lbs
Adlan Bataev vs. Donald Sanchez 145 lbs
Tural Ragimov vs. Ed Arthur 135 lbs
Ilya Sheglov vs. Wallyson Carvalho 205 lbs
Alexey Butorin vs. Jake Bostwick 185 lbs
Igor Svirid vs. Yasubey Enomoto 185 lbs
Mukhamed Kokov vs. Carlos Alexandre 145 lbs