Dipchkov made his professional MMA debut during the M-1 Challenge event in Brazil against one of M-1's best heavyweights, Jessie Gibbs. Dipchkov's inexperience showed, as he tapped to punches by Gibbs at just 1:37 of round 1. Things won't be any easier for him against Valtonen, 18-9.

In addition to the best-of-five showdown between Finland and Bulgaria, two other team challenge matchups between USA West vs. Russia Imperial and host country South Korea vs. Brazil Naja.

The event will be taped for future airing in the United States on HDNet, which broadcasts the M-1 Challenge each and every Friday at 8 p.m. ET. A live stream of the event will also be available via Internet pay-per-view (note: live stream will not be available in the U.S. or South Korea). For more information on the M-1 Challenge, please visit www.M-1Global.com.

The current 15-fight lineup for the July 4 event is as follows:

Bulgaria vs. Finland -

Lightweight (-70 kg/154 lbs.) - Yanko Yanev (BUL) vs. Niko Puhaka (FIN)
Welterweight (-76 kg/167.2 lbs.) - Ivan Ivanov (BUL) vs. Janne Tulirinta (FIN)
Middleweight (-84 kg/184.8 lbs.) - Rosen Dmitirov (BUL) vs. Mikko Suvanto (FIN)
Light Heavyweight (-93 kg/204.6 lbs.) - Emil Samoilov (BUL) vs. Marcus Vanttinen (FIN)
Heavyweight (+93 kg/+ 204.6 lbs.) - Nikola Dipchkov (BUL) vs. Marcus Valtonen (FIN)

USA West vs. Russia Imperial -

Lightweight (-70 kg/154 lbs.) - Dave Jansen (USA) vs. Amirkhan Mazikhov (RUS)
Welterweight (-76 kg/167.2 lbs.) - Fabio Nasicmento (USA) vs. Marat Ilaev (RUS)
Middleweight (-84 kg/184.8 lbs.) - Giva Santana (USA) vs. Radmir Gabdulin (RUS)
Light Heavyweight (-93 kg/204.6 lbs.) - Tony Lopez (USA) vs. Viktor Nemkov (RUS)
Heavyweight (+93 kg/+ 204.6 lbs.) - Shane Del Rosario (USA) vs. Maksim Grishin (RUS)

South Korea vs. Brazil -

Lightweight (-70 kg/154 lbs.) - Nam Yui Chul (KOR) vs. Hacran Dias (BRA)
Welterweight (-76 kg/167.2 lbs.) - Do Hyung Kim (KOR) vs. Eduardo Pamplona (BRA)
Middleweight (-84 kg/184.8 lbs.) - Jae Young Kim (KOR) vs. Daniel Acacio (BRA)
Light Heavyweight (-93 kg/204.6 lbs.) - Doo Hee Lee (KOR) vs. Alexander Machado (BRA)
Heavyweight (+93 kg/+ 204.6 lbs.) - Hae Joon Yang (KOR) vs. Joaquim Ferreira (BRA)

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