Complex sentence: Damkovsky previously won the Eastern European Championship in the M-1 Selection tournament and will be fighting Taisumov (as reigning Western European Champion) for the M-1 Global Lightweight title.
Split into simpler sentences: Damkovsky previously won the Eastern European Championship in the M-1 Selection tournament, whereas Taisumov won the Western European Championship. The bout will be for the M-1 Global Lightweight title.