Complex sentence: During the 2005 tournament, which was held on May 14,2005, the winner was determined by all single elimination matches but the original tournament structure returned in 2006 but saw the last four men face off in one match to determine the winner.
Split into simpler sentences: During the 2005 tournament, which was held on May 14,2005, the winner was determined by all single elimination matches. The original tournament structure returned in 2006, but saw the last four men face off in one match to determine the winner.