If Ilia Topuria and Islam Makhachev continue their back-and-forth in the wake of Topuria's move to lightweight to chase Makhachev's title – and Makhachev's subsequent move to welterweight to go after the title there,

Ilia Topuria is preparing for the biggest fight of his career.

The bout will mark Topuria’s debut at 155 pounds after vacating his featherweight title earlier this year, while Oliveira returns to another title opportunity following his dominant win over Michael ...