Tai Tuivasa was unranked after six fights inside the Octagon and was pretty much forgotten about in the 265-pound title chase. Then “Bam Bam” went on an absolute tear, racking up five straight wins with five consecutive knockouts, including his second-round destruction of Derrick Lewis earlier this year. The Aussie is now ranked No. 3 in the official heavyweight rankings. That position has afforded him the right to call for any matchup he wants, including a potential banger against former light heavyweight champion Jon Jones. “Bones” is expected to make his heavyweight debut at some point later this year and…