Let's do math, combat sports math with Nate Diaz's teammate and close friend, fighter Chris Avila ... who explains to TMZ Sports why he'll beat Tommy Fury, IF Tyson's younger bro accepts a fight.
We talked to 28-year-old Avila in Tampa after he picked up a unanimous decision win over Anthony Taylor ... and he told us he wants Fury next and believes he has an advantage.
Why? Because they both faced Taylor ... and Avila tells us Fury struggled with a guy he easily handled.