Complex sentence: His second defense of the WBA title was against the current WBO Cruiserweight Champion Marco Huck, on February 25th, 2012 at Porsche Arena in Stuttgart, Baden-Württemberg.
Split into simpler sentences: His second defense of the WBA title will be against the current WBO Cruiserweight Champion Marco Huck. The fight took place on February 25th, 2012 at Porsche Arena in Stuttgart, Baden-Württemberg.